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- Basic Statistics (32)
- Chart and Graphics (7)
- Correlation and Regression Analysis (21)
- Design of Experiment (DOE) (6)
- Estimate and Estimation (11)
- Heteroscedasticity (7)
- Miscellaneous Articles (6)
- Multivariate Statistics (4)
- Probability (9)
- Sampling and Sampling distributions (7)
- Short Questions (10)
- Statistical Simulation (4)
- Statistical Softwares (14)
- Mathematica (3)
- Matlab (2)
- Microsoft Excel (3)
- R Language (5)
- Statistical Package for Social Science (SPSS) (1)

- Statistical Tables (1)
- Stochastic Processes (6)
- Markov Chain (1)
- Random Walks (4)

- Testing of Hypothesis (9)
- Independent sample t-test (2)
- Type I error (3)
- Type II Error (1)

- Time Series Analysis and Forecasting (6)

alternative hypothesis
Basic Statistics
Binomial Probability Distribution
Central Tendency
chart
Chart and Graph
chart and graphics
Coefficient of Determination
correlation
Deciles
estimate
estimation
Frequency Distribution
graph
Heteroscedasticity
Homoscedasticity
interval estimate
Level of Risk
Level of Significance
mean
Measure of central tendency
Measure of Dispersion
Measure of Position
Measure of spread
median
Miscellaneous Articles
mode
multiple regression
null hypothesis
P-Value
Pearson's Correlation Coefficient
Point Estimate
Probability Distribution
Probability Value
Pseudo Random Number
Pseudo Random Process
Regression
Regression analysis
Short Questions
Significance level
Simulation
Statistical Simulation
Stochastic Processes
testing of hypothesis
type I error

The Z-Score The Z-score also referred to as standardized raw scores is a useful statistic because not only permits to compute the probability (chances or likelihood) of raw score (occurring within normal distribution) but also it helps to compare two raw scores from different normal distributions. The Z-score is a dimensionless measure since it is […]

Multicollinearity in Linear Regression Models The objective of multiple regression analysis is to approximate the relationship of individual parameters of a dependency, but not of interdependency. It is assumed that the dependent variable and regressors ‘s are linearly related to each other (Graybill, 1980; Johnston, 1963 and Malinvaud, 1968). Therefore, inferences depicted from any regression […]

Levels of Measurement (Scale of Measure) Level of measurement (scale of measure) have been classified into four categories. It is important to understand these level of measurement, since these level of measurement play important part in determining the arithmetic and different possible statistical tests that are carried on the data. The scale of measure is […]

Variance is a measure of dispersion of a distribution of a random variable. The term variance was introduced by R. A. Fisher in 1918. The variance of a set of observations (data set) is defined as the mean of the squares of deviations of all the observations from their mean. When it is computed for […]

A research can be classified into two groups: Qualitative and Quantitative Research Qualitative Research Qualitative research involves collecting data from in-dept interviews, observations, field notes, and open-ended questions in questionnaire etc. The researcher himself is the primary data collection instrument and the data could be collected in form of words, images, and patterns etc.For Qualitative […]

The R program’s structure is similar to the programs written in other computer languages such as C or its successors C++ and Java. However, important differences between these languages and R are (i) R has no header files, (ii) most of the declarations are implicit, (iii) there are no pointers in R, and (iv) text …

The problem of multicollinearity plagues the numerical stability of regression estimates. It also causes some serious problem in validation and interpretation of the regression model.Â Consider the usual multiple linear regression model, , where is an vector of observation on dependent variable, is known design matrix of order , having full-column rank , is vector of …

R language provides an interlocking suite of facilities that make fitting statistical models very simple. The output from statistical models in R language is minimal and one needs to ask for the details by calling extractor functions. Defining Statistical Models; Formulae in R Language The template for a statistical model is a linear regression model …

Source Code of R Method There are different ways to view the sourceÂ code of an R method or function. It will help to know how functionÂ is working. Internal Functions If you want to see the source code of internal function (functions from base packages), just type the name of the function at R prompt such …

Question: How one can include Greek letter (symbols) in R plot labels? Answer: Greek letters or symbols can be included in titles and labels of graph using the expression command. Following are some examples Note that in these example random data is generated from normal distribution. You can use your own data set to produce …

Question: How I can check my Working Directory so that I would be able to import my data in R. Answer: To find working directory, the command getwd() can be used, that is > getwd() Question: How I can change working directory to my own path. Answer: Use function setwd(), that is > setwd(“d:/mydata”) > …

i appreciate you sir!

Hi Muhammad Imdadullah,

Thanks for posting a comment on my blog. I have included your blog in my blog feed. Keep up the good posts!

Francis

AsSalam O Alakam, This is MYaseen208. Please drop me an email. Thanks

A.o.a … imdad sb u did really nice work ,, uploading the statistical software … but i want to say that there is missing basic software like minitab ,,, spss … and Eview

I can’t gave download links of registered or priced softwares. I am sharing initially 100% softwares, most of them fulfills our many statistical needs and even solve many statistical problems. For minitab, SPSS, Eview I am trying to write their tutorial rather than sharing there pirated versions.

sir plz add interviw questions which mostly asked in interviwe

Its good idea, but initially its better if students appearing in different interviews provide some information about questions asked. Actually I am doing all the things myself. Its very difficult to maintain, run and update a website with unique contents.

A.A..

Hope you will be fine. I discoverd your site while I was just looking for SPSS model papers and some helping metrial regarding to mcqs on SPSS. It was a nice experience to see your hard work. It is quite appreciating. Please inform me if I would assist you in this regard.

Regards!

Muhammad Rafi

Lecturer Statistics

Govt. Post Graduate Islamia College, Gujranwala

A.O.A

Sir, you are doing great job….really it is very helpful…..i want to say, thank you so much…kindly check the question # 3 in test 4 related the topic “regression and correlation”….i think the correct answer is option A….the line is parallel to x-axis….but the computer shows option D as right answer…. kindly check it out đź™‚

regards

W.A.

Thanks for liking the work.

Checked the question and found correct.

The question is related to equation such as y=k, which means that as x increases or decreases, y remains the constant hence line is parallel to the x-axis. One can also say that A line having a Zero Slope is Horizontal.

Thanks again for visiting and commenting

PLEASE MAIL ME AS ATTACHMENTS WITH ANSWERS MCQS ON BIOSTATISTICS AND LECTURES ON IT

BYE

SHAHID

You can download all available MCQS from sites.

Good job…stay blessed

Salam Sir,

I Rahmat hassan from Gilgit student of statistics, Sir i would like to take some tips about FPSC b/c i visit your web page and gain much of information about my subjects.

Kindly help me sir

Thankyou Sir

AOA

Imdad Bhai , Good Job sir