A marginal frequency of a two-way frequency table is the sum of a row or column of joint frequencies. In the following example, there are four marginal frequencies, highlighted in blue.
Driver's license | ||||
Yes | No | Total | ||
Car | Yes | 43 | 4 | 47 |
No | 24 | 29 | 53 | |
Total | 67 | 33 | 100 |