Last time we have discussed the concept of regression analysis. Let us discuss the difference between correlation and regression. CORRELATION 1 ) correlation means relationship
Meaning of Regression analysis: It means stepping back and returning to average value. This is propounded by Sir Francis Galton. It is the measure of
Let us discuss the difference between null and alternative hypothesis: Null hypothesis The hypothesis we want to test or a hypothesis of no difference is
Meaning of hypothesis: It is a quantitative statement about population. It is some assumption or statement which may or may not be true about a
Meaning of Normal distribution or law of error Binomial and passion distribution are discrete probability distribution. But normal probability distribution commonly called normal distribution. It
Sampling is mainly divided into two types; probability or random sampling and non probability or non random sampling. In other words, Sampling methods are broadly
Errors in statistics or any statistical investigation can be broadly classified in two types: a) Sampling errors and b) non sampling errors a) Sampling errors:
Definition Error in Statistics: Error in statistics means the difference between true value and the estimated value. It is different from the mistakes which may
A Finite subset of population, selected from it, with the objective of investigating its properties is called ‘sample’. In sample method we select a part
Meaning of sample A Finite subset of population, selected from it, with the objective of investigating its properties is called ‘sample’. The number of units
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