Showing posts with label statistics. Show all posts
Showing posts with label statistics. Show all posts

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PSPP, A Free Alternative of SPSS, Free Download PSPP

PSPP is a free alternative software for SPSS.

It is a program for statistical analysis of sampled data. It is a Free replacement for the proprietary program SPSS, and appears very similar to it with a few exceptions.
website for PSPP is


Functional option
Functional option


The features of PSPP are follows:

  • Supports over 1 billion cases.
  • Supports over 1 billion variables.
  • Syntax and data files are compatible with SPSS.
  • Choice of terminal or graphical user interface.
  • Choice of text, postscript or html output formats.
  • Inter-operates with Gnumeric, OpenOffice.Org and other free software.
  • Easy data import from spreadsheets, text files and database sources.
  • Fast statistical procedures, even on very large data sets.
  • No license fees.
  • No expiration period.
  • No unethical “end user license agreements”.
  • Fully indexed user manual.
  • Free Software; licensed under GPLv3 or later.
  • Cross platform; Runs on many different computers and many different operating systems.

PSPP is particularly aimed at statisticians, social scientists and students requiring fast convenient analysis of sampled data.

Statistical analyst Careers and Jobs Information

Career and Job Highlights for Statistical analyst :

A course in statistics, is a rewarding and often more exciting. Statisticians work with data that are all around us and work opportunities are endless. But if I said to her in a matter of social-savvy gives the solution of the questions, the number of labor and in the countries where we may live, let him enjoy the people, for this is the use of. RSS In the writer serves Careers in Statistics you need to know about what being a professional statistician in different sectors involved in and it feels like and how you can get started. 

Having earned a degree in statistics does not necessarily lead to jobs with statistician profiles
Most statistician jobs require no fewer qualifications a master’s degree in mathematics of statistics.
Opportunities are likely to continue to exist for people with statistician degrees, despite the decline in growth expectations
Statistical analyst Care Overview: 

Statistics essentially involves putting mathematics to scientific use in the form of data comparison, analysis, and presentation. Statisticians use this knowledge to design, collect, and interpret them the knowledge of the surrounding experiments in many and diverse fields of industry. These are all available from the fields of economics, medicine, psychology, biology, public health and other sports. Military considerations take statistical procedures for approval of certain strategies and sanctions. 
Statisticians use sampling techniques to determine the relative size of the population and Demographics. This process is done by surveying large portions of soil. They determine the size of the group, the reason for carrying these samples and samples outside. Stylizing This includes instructions and questions used in the surveys. Finally, statisticians In summary, shake off, and to interpret the resultant data. 
Statisticians are also heavily involved in the development of products, and quality factors. Often the need for the automobile, pharmaceutical, or computer software companies in trial testing and product evaluation. Apart from the development, statisticians are also involved with the porch, asset, liability, and risk management, and the Departments of marketing firms. 
Most government organizations and agencies hire statisticians to evaluate population, demographic, and economic measures. In many other environmental, scientific, and agricultural agencies to hire statisticians for similar type of work in their respective fields. Even national defense organizations hire statisticians to assess the weapons and strategy effectiveness. 
Different job titles exist for the various statistical specializations. Biostatisticians and epidemiologists are two examples of job titles within the health industry. Econometricians work in areas involving economic research and data.

Statistical analyst Care Job Training and qualifications:
Statistical Most jobs require at least a master's degree in mathematics or statistics. Advanced academic research in statistics, it requires at least a master's degree and Ph.D. requires a higher-level institution in the same field. Entry-level jobs in other areas of research, such as industrial, they need to have had experience of many years of work and study. 

Simply for the Federal Government requires a bachelor's degree in statistician jobs with certain hours in pure mathematics and statistics. To be a mathematical statistician in the Government requires the combined total of twenty-four hours in statistics and mathematics, with particular concern for the differential equations, vector analysis, and calculus. Numerous schools have degrees and necessary course available in these areas of research. Usually require greater statistical courses in probability theory, calculus, and statistical methods and modeling. This is in addition to algebra, mathematical analysis and design courses are usually incorporated in the burgeoning program. 

About 140 schools offer a master's degree in higher education statistics, while 90 offer doctoral degrees. Numerous schools, upper-level and graduate level courses in statistics, economics, engineering, business, education, and psychology. Although not required to accept this burgeoning discipline, graduate programs prefer students to have had prior training in mathematics. Statistics are used widely in computer programs, and computer science education is also beneficial. For jobs involving product quality management, natural sciences, and engineering discipline may be required. Any area of ​​health science education, it is useful to move the pharmaceutical jobs, education and business is good business or economic analysis, forecasting, and the market here.
With strong interpersonal skills, and will also help in communicating technical statisticians from people unfamiliar with the specific program. For the private sector they work, and economic matters in a summary fashion, and are highly beneficial. Entry-level statisticians to work under supervision, but they are soon likely to advance on to the greater responsibility jobs. These promotions or promotions, are especially those with graduate degrees in the respective fields. 

Job and Employment Opportunities for the Data Analyst:
Job growth is usually decline during the next decade. Many opportunities should still be open to job seekers who have the appropriate level. Instead of having a typical statistician job profile but, instead, to those workers to work in the areas of analysis and science, computer, and business fields. Although job growth is not likely to expand, the opportunities afforded by the employee still turnovers and career transfers. 
The most qualified candidates for the jobs are those with a graduate education in statistics relating to finance, it, computer science, and biology. National government has many openings for statisticians within its different departments, and these jobs are considered to be highly competitive due to lower their expectations of the required jobs beginner. While they were certified with the State are wont to be able to find the position that the doctrine of the high school.
Statisticians work for the arches firms in areas such as aircraft, motor vehicles, pharmaceuticals, food, and chemicals. A pharmaceutical firm may employ a statistician to evaluate drug efficiency. A motor vehicle company to hire statistician for quality control purposes in the automobile testing. They can also work with scientists and engineers in researching and analyzing new product development. Many software firms also hire statisticians and quality control of the software development. 
Affairs work with statisticians in estimating the overall business-run efficiency and profit. Statisticians also offer consulting services in this field of the business to another. Generally, statisticians must have a current computer skills and information, including programming and software equipment.

List of Basic and advanced Statistical Analysis part-(1)

This is a list of some basic and advanced statistical analysis
1.    Mean
2.    Median
3.    Mode
4.    Standard Deviation
5.    Geometric Mean
6.    Regression
7.    Harmonic Mean
8.    Standard Error
9.    Coefficient of variance
10.        Permutation and Combination
11.        Weighted mean
12.        Correlation Co-efficient
13.        Five Number Summaries
14.        Post Test Probability
15.        Probability Tree
16.        Covariance
17.        T-Test
18.        F-Test Calculator
19.        One Way ANOVA
20.        Multiple Regressions
21.        Frequency Distribution
22.        Stem and Leaf Plot Graphing
23.        Skewness
24.        Skewness Coefficient
25.        Mean Squared Error
26.        Venn diagram and probability
27.        Hypothesis Test for Population Variance

Statistician (Statistics) Jobs as Freelancer

There are huge jobs in freelancer market. The jobs be data entry, statistical analysis etc. For example click here.
The following is an example of a job description in

Data entry jobs need 100 applicants

Avg Bid
$300 USD

·         Project ID:

·         Project Type:

·         Budget:

$250-$750 USD

Project Description:

Data entry workers required urgently. No upfront fees required.

Earn $4000.00USD per month from home No marketing / No MLM . We are offering a rare Job opportunity where you can earn from home using your computer and the Internet part-time or full-time. Qualifications required are Typing on the Computer only. Working part time for 2-5 hours daily can easily fetch you $4000.00USD per month. Online jobs, Part time jobs. Work at home jobs. Dedicated workers make much more as the earning potential is unlimited. No previous experience is required, Full training provided. Anyone can apply.

Skills required:

Jobs Role for Statistical Data Analysis

Who Hires Statisticians?
Statisticians are mathematicians who specialize in the reasoning and methods for producing and observant data. Students who major in math can combine a focus in statistics with other subject area like science, business, or computer science.

The Role of Statistics in Medicine:
Statistics is important in the area of health and medicine. The field of biostatistics deals with the application of statistics specifically in biology. Some statistics careers are available in:
  1. Animal Health
  2. Public Health
  3. Clinical Research
  4. Epidemiology
  5. Forensics Medicine
  6. Genetics
  7. Pharmacology
The Role of Statistics in Business and Industry:
The role of statistics in business and industry is to help solve the major problems in companies today like quality control and product improvement. Such companies can be in the line of work such as:
  1. Agriculture
  2. Chemistry
  3. Computer Science
  4. Economics and Finance
  5. Engineering
  6. Insurance
  7. Manufacturing
  8. Marketing
  9. Reliability
The Role of Statistics in Government:
According to the Bureau of Labor Statistics, about 30% of statisticians work for federal, state and local governments. Some of the jobs are in the fields of:
  1. Bureau of Justice Statistics
  2. Census and Population Research
  3. Commerce
  4. Ecology
  5. Forestry
  6. Government Regulations
  7. Law
  8. National Defense

How spss(statistical package for the social sciences) works

You always begin by defining a set of variables, and then you enter data for the variables to create a number of cases. For example, if you are doing an analysis of automobiles, each car in your study would be a case. The variables that define the cases could be things such as the year of manufacture, horsepower, and cubic inches of displacement. Each car in the study is defined as a single case, and each case is defined as a set of values assigned to the collection of variables. Every case has a value for each variable. Variables have types. That is, each variable is defined as containing a specific kind of number. For example, a scale variable is a numeric measurement, such as weight or miles per gallon. A categorical variable contains values that define a category; for example, a variable named gender could be a categorical variable defined to contain only values 1 for female and 2 for male. Things that make sense for one type of variable don’t necessarily make sense for another. For example, it makes sense to calculate the average miles per gallon, but not the average gender.
After your data is entered into SPSS — your cases are all defined by values stored in the variables — you can run an analysis. You have already finished the hard part. Running an analysis on the data is much easier than entering the data. To run an analysis, you select the one you want to run from the menu, select appropriate variables, and click the OK button. SPSS reads through all your cases, performs the analysis, and presents you with the output.
You can instruct SPSS to draw graphs and charts the same way you instruct it to do an analysis. You select the desired graph from the menu, assign variables to it, and click OK. When preparing SPSS to run an analysis or draw a graph, the OK button is unavailable until you have made all the choices necessary to produce output. Not only does SPSS require that you select a sufficient number of variables to produce output, it also requires that you choose the right kinds of variables. If a categorical variable is required for a certain slot, SPSS will not allow you to choose any other kind. Whether the output makes sense is up to you and your data, but SPSS makes certain that the choices you make can be used to produce some kind of result.

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SPSS (Statistical Package for the Social Sciences)

SPSS is a comprehensive, interactive, general-purpose package for data analysis and it includes most routine statistical techniques. SPSS is a true Windows package being mouse-driven with movable, scalable windows, drop-down menus and dialog boxes. Underlying the graphical interface is a command language consistent with previous versions of the package. A very important and useful feature is the Data Editor, which can be used to enter, view or edit data. The Data Editor makes your data immediately visible so that you can see what you are dealing with. The package also has high-resolution graphics which are easily edited and an extensive help system.

On the other hand,
SPSS is a computer program used for survey authoring, data mining, text analytics, statistical analysis etc. SPSS (Statistical Package for the Social Sciences) was released in 1968, developed by Norman. SPSS is one of the widely used programs for statistical analysis in social science. SPSS manual is considered as “sociology’s most influential books”.
Some of the statistics function used in the base software is Descriptive Statistics: Cross tabulation, Frequencies, Explore and Ratio Statistics. Bivariate Statistics: Mean, t-test, ANOVA, Correlation. Prediction for numerical outcomes and prediction for identifying groups. Students who are struggling with these concepts can make use of SPSS Homework Help services.
The first version of SPSS was designed for batch processing and mainframes. Now the version 16.0 runs under Windows, Mac OS X and Linux. SPSS was developed IBM corporations. It runs on the JAVA platform.
SPSS is used widely in most of the industrial sectors. It is used by market researchers, health researchers, survey companies, government educational researchers, marketing organizations and others.
SPSS is probably one of the easiest major statistics package to use. It allows even inexperienced users to run complicated statistical analyses at the click of a few buttons. When you are at the PC you are in charge of the package and it will attempt to do whatever you ask it, whether your instructions are sensible or not! The adage of garbage in, garbage out applies! It is therefore essential that you get a good understanding of the commands that you need to use and what the results mean.

Work for a Data Analyst

A data analyst is a person who has to search for information related to the particular requirements of a client. Therefore, you must have the ability to question yourself in relation to the content of a topic. You then have to keep researching until an appropriate solution is found. You have to discover the source of the original data and be able to evaluate it.

Job Titles:
Junior Data Analyst: A junior analyst searches for the appropriate data and provide sufficient material to be analyzed. They have to prepare statistical diagrams and flowcharts.
Senior Data Analyst: A senior analyst has to consult and communicate with the client. He/she has to prepare the final report and present it.
Data Analysis Project Manager: Duties include project organization and methodology. The project manager has to audit the reports and make sure that they fulfill the needs of the client
Since all these are specialized skills, which are in great demand in today's technological world, data analysts have high growth prospects. If you have the required qualifications and skills, and are keenly interested in pursuing a career in this field, then being a data analyst is a good option for you.

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Statistics is Science

Definition of statistics by BRITANNICA is-
Statistics is the science of collecting, analyzing, presenting, and interpreting data. Governmental needs for census data as well as information about a variety of economic activities provided much of the early impetus for the field of statistics. Currently the need to turn the large amounts of data available in many applied fields into useful information has stimulated both theoretical and practical developments in statistics.

Statistics is a very complex and challenging field. Most scientists we know have a moderately sophisticated understanding of statistics, many know far more of statistics than we, although some apparently less. However, most large studies consult with statisticians who are experts in statistical analysis.

I believe that statistics can be a science in the same sense as physics. The fact that it is split into two branches, frequency and Bayesian, is unsettling. There is no consensus among statisticians on some fundamental issues. This means that users of statistics must apply their own judgment - they cannot fully rely on results of research performed by statisticians in the same way that they can do it in an idealized science that I described above. Statistics does not generate intellectual material of the same kind as in historical research or art so it should try to evolve in the direction of natural sciences such as physics, in terms of consensus.

Statistical analysis is just another tool of modern science – it is part of the technology of science. And like all things, there is a wide variation in quality and understand across individuals, and what filters down to the public is generally oversimplified to the point of being wrong.

Statistics is a very complex area of science and mathematics and much of the problem is that many scientists themselves don’t understand statistics well enough, because of how they view it. Statistics is sometimes viewed as an obstacle to get to the science, but in reality its part of it.

Some people say that,
The problem is that new software packages have made it easy to apply statistical tests even in situations where understanding them is difficult, or they might not be needed at all. Many people have this notion that. Because it is so easy, many people just tack this sort of thing onto the end of papers.
The thing to keep in mind is that each statistical test looks for different aspects of the data and you have to understand what they do in order to determine if the test is appropriate and if the results will be meaningful.

So we can easily  say statistcs is a science.

Pie Charts

Pie Charts
·         A circle is divided proportionately and shows what percentage of the whole falls into each category
·         These charts are simple to understand.

They convey information regarding the relative size of groups more readily than does a table.
pie chart

Math and Statistics

According to Webster'

Statistics is a branch of applied mathematics which includes the planning, summarizing, and interpreting of uncertain observations. Because the aim of statistics is to produce the "best" information from available data, some authors make statistics a branch of decision theory. As a model of randomness or ignorance, probability theory plays a critical role in the development of statistical theory.

According to Wikipedia:

Mathematics is the academic discipline, and its supporting body of knowledge, that involves the study of such concepts as quantity, structure, space and change. The mathematician Benjamin Peirce called it "the science that draws necessary conclusions". Other practitioners of mathematics maintain that mathematics is the science of pattern, and that mathematicians seek out patterns whether found in numbers, space, science, computers, imaginary abstractions, or elsewhere. Mathematicians explore such concepts, aiming to formulate new conjectures and establish their truth by rigorous deduction from appropriately chosen axioms and definitions.

Through the use of abstraction and logical reasoning, mathematics evolved from counting, calculation, measurement, and the systematic study of the shapes and motions of physical objects. Knowledge and use of basic mathematics have always been an inherent and integral part of individual and group life.

According to Webster'

Mathematics is commonly defined as the study of patterns of structure, change, and space. In the modern formalist view, it is the investigation of axiomatically defined abstract structures using logic and mathematical notation. It is a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement