Question

The following data gives the measured gas mileage in miles per gallon for 16 cars of the same model. 23 25 26 25 27 25 24 22 23 25 26 26 24 25 27 23 Determine:

(a) the mean and
(b) the standard deviation, and plot the absolute frequency histogram using the hist command, and the relative frequency histogram using the bar command

Answer 1

1. 374.4
2. 20-0
3. 21-0
4. 22-1
5. 23-3
6. 24-2
7. 25-5
8. 26-3
9. 27-2
10. 28-0
11. 29-0
12. 30-0

Explanation: