Question

what is the formula to find the mean using assumed mean method​

Answer 1

Answer:

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Step-by-step explanation:

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. Using this method, we can assume a mean of 150 as it is in the middle and has the highest frequency and applying the formula gives the answer.

Answer 2

Step-by-step explanation:

• 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.