The following distribution shows the number of students enrolled in five English courses at a local university. Number of Students 37 39 41 43 48 Probability P(X) 0.21 0..20 0.14 0.27 0.18 Find the mean, variance, and standard deviation for the distribution. Find the expectation of the enrollment in English classes.
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 following distribution shows the number of students enrolled in five English courses at a local university.
Number of Students |
37 |
39 |
41 |
43 |
48 |
Probability P(X) |
0.21 |
0..20 |
0.14 |
0.27 |
0.18 |
- Find the mean, variance, and standard deviation for the distribution.
- Find the expectation of the enrollment in English classes.
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