e) How degree of freedom is different from total number of observation? f) What do you understand by hypothesis testing? g) What is the difference between t test and Ftest? h) What is the difference between Type 1 and Type 2 error? i) What is familywise error rate? Why 2 sample t test cannot be used for more than two samples means? j) What is LSD and how is it used? k) What do you understand by linearity? 1) What relationship is obtained in simple linear regression? m) You have used ANOVA in more than two sample testing and also in regression. Is there any difference in ANOVA in both cases

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.