Question

take 15 assumed mean And use assumed mean method​

Answer 1

Explanation:

The main trick to use in assuming the mean is to assume the mean as the class having the highest frequency and assume a mean which is in the middle of the classes. In this way of assuming, the calculations will be easier than assuming a mean at the end points of the given range.

Answer 2

Answer:

• In the assumed mean method, we will assume a certain number within the data given as the mean and is denoted by a. ... If a is the assumed mean fi denotes the frequency of the ith class which is having a deviation of di from the assumed mean, the formula for the mean is ¯x=a+∑fidi∑fi.

Explanation:

• hope it helps you!