The following table provides a breakdown of advertising sales representatives of a population according to the number of items sold per day. Number of Items sold 0 1 2 3 4 Number of representatives 488 1872 884 186 18 4.What is the probability that an advertising sales representative sold less than 3 items? 5.Calculate and interpret the expected value. 6.Calculate the variance and the standard deviation
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 table provides a breakdown of advertising sales representatives of a population according to the number of items sold per day.
|
Number of Items sold |
0 |
1 |
2 |
3 |
4 |
|
Number of representatives |
488 |
1872 |
884 |
186 |
18 |
4.What is the
5.Calculate and interpret the expected value.
6.Calculate the variance and the standard deviation.
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