Question

In the formula $Mean=a+\frac{\sum f_i{d}_i}{\sum f_i}$ , the a stands for assumed mean.

• A. True
• B. False

Answer 1

The correct option is A

True

The assumed mean is used to compute the arithmetic mean and standard deviation for a grouped data. The formula used to compute the actual mean using assumed mean is,

$Mean=a+\frac{\sum f_i{d}_i}{\sum f_i}$

Where 'a' stands for the assumed mean.