Number of cars: | 0−10 | 10−20 | 20−30 | 30−40 | 40−50 | 50−60 | 60−70 | 70−80 |
Frequency: | 7 | 14 | 13 | 12 | 20 | 11 | 15 | 8 |
The given data is shown below.
Number of cars | Frequency |
0−10 | 7 |
10−20 | 14 |
20−30 | 13 |
30−40 | 12 |
40−50 | 20 |
50−60 | 11 |
60−70 | 15 |
70−80 | 8 |
Here, the maximum frequency is 20 so the modal class is 40−50.
Therefore,
Thus, the mode of the data is 44.7.