In a recent year there were the following numbers (in thousands) of licensed drivers in the United States. Male Female Age 19 and under 4746 4517 Age 20 1625 1553 Age 21 1679 1627
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.
| Male | Female | |
|---|---|---|
| Age
19
|
4746
|
4517
|
| Age
20
|
1625
|
1553
|
| Age
21
|
1679
|
1627
|
Choose one driver at random. Find the following
|
Pmale and age 21
=
|
??
|
The data on the licensed drivers of United states is given as-
| Male | Female | Total | |
| Age 19 and under | 4746 | 4517 | 9263 |
| Age 20 | 1625 | 1553 | 3178 |
| Age 21 | 1679 | 1627 | 3306 |
| Total | 8050 | 7697 | 15747 |
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