The following table shows the frequency distribution for the mileage on a sample of Avis rental cars:

Question:

a. Calculate the approximate average mileage per car for the sample.

b. Calculate the approximate variance and standard deviation for the sample.

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...