he probability that student will score full marks in statistics exam is 0.2 . 'X' counts the number of students who score full marks out of 100 students. 1) What distributuon does 'X' follow and why ? What are assumptions you making here? 2) Use normal approximation to this disrltribution to find probability that random variable X is counting any value in between 10 to 22 (Both inclusive) ? 3) Also find error in this approximarion?
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.
The
'X' counts the number of students who score full marks out of 100 students.
1) What distributuon does 'X' follow and why ? What are assumptions you making here?
2) Use normal approximation to this disrltribution to find probability that random variable X is counting any value in between 10 to 22 (Both inclusive) ?
3) Also find error in this approximarion?
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