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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 5
$30-39 7
$40-49 4
$50-59 4
$60-69 2
$70-79 5
$80-89 3
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 $________
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