Textbook Price Number of Textbooks $25 to $35 2 35 to 45 16 45

Textbook Price Number of Textbooks $25 to $35 2 35 to 45 16 45 to 55 5 55 to 65 7 65 to 75 20 Estimate the standard deviation of the price of a textbook. 

A. 196.78 

B. 14.03 

C. 33.85 

D. 729.00 

 

Solution