Question

While computing mean of grouped data, we assume that the frequencies are ______.

Options

• evenly distributed over all the classes

• centred at the class marks of the classes

• centred at the upper limits of the classes

• centred at the lower limits of the classes

Answer 1

While computing mean of grouped data, we assume that the frequencies are centred at the classmarks of the classes.

Explanation:

In computing the mean of grouped data, the frequencies are centred at the class marks of the classes.