The following frequency distribution shows the price per share for a sample of 30 companies listed on the New York Stock Exchange.

Price per Share Frequency

$20-29 9

$30-39 4

$40-49 6

$50-59 4

$60-69 5

$70-79 1

$80-89 1

Compute the sample mean price per share and the sample standard deviation of the price per share for the New York Stock Exchange companies (to 2 decimals). Assume there are no price per shares between 29 and 30, 39 and 40, etc.

Sample mean$_____________

Sample standard deviation$_________________