The table shows the percentage of drivers for the entire U.S. population for different age groups....

The table shows the percentage of drivers for the entire U.S. population for different age groups.

Age Group

15 – 24 ; 25 – 44 ; 45 – 64 ; 65 – 84 ;85 – 104

Percent of drivers

22.21 ; 33.33 ; 29.772; 13.678 ; 1.01

5. Calculate the mean age.

6. What is the variance of the age of the drivers?

7. What is the median class?

What is the cumulative relative frequency of the class 45 - 64?

9. What is the probability that a randomly selected driver will have an age that is greater than the modal class?

10. The shape of this distribution is

Solutions

Expert Solution

orchestra answered 1 year ago

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