The following frequency distribution shows the price per share of the 30 companies in the Dow Jones

Question:

The following frequency shows the price per share of the 30 companies in the Dow Jones Industrial Average (Barron's, February 2, 2009).

The following frequency distribution shows the price per share of

a. Compute the mean price per share and the standard deviation of the price per share for the Dow Jones Industrial Average companies.
b. On January 16, 2006, the mean price per share was $45.83 and the standard deviation was $18.14. Comment on the changes in the price per share over the three-year period.

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...