question_answer

Find the product of the two missing frequencies in the following distribution table, if it is given that the mean of the distribution is 56.

Class	0-20	20-40	40-60	60-80	80-100	100-120	Total
Frequency	16	\[{{f}_{1}}\]	25	\[{{f}_{2}}\]	12	10	90

A)  153                             

B)  162

C)  176                             

D)  180

E)  None of these