For finding the mean value of the grouped data it is assumed that the frequency of each class interval is not centred around its mid-point.

False

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True

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Solution

The correct option is A False

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Similar questions

For calculating mean of grouped data, the mid point of each class interval is chosen to represent all the observations from that class.

Consider a grouped data distribution for which the mean is found by assumed mean method.

P = sum of the products of ‘d’ and frequency for each class interval

Here $d_{i} = x_{i} - A$

Q = total number of observations

A = assumed mean

M = mean of given grouped data distribution

Which of the following statements is true?

For calculating the mean of grouped data, the midpoint of each class interval is chosen to represent all the observations from that class.

There is a grouped data distribution for which mean is to be found by step deviation method.

A = assumed mean

B = class interval

C = sum of products of ‘u’ and frequency for each class interval

D = Total number of observations

Which of the following statements is true regarding mean(m) for the grouped distribution ?

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