Calculate the mean of the following data
Class 4-7 8-11 12-15 16-19
Frequency 5 4 9 10

Solution:

Given, the above data gives the class and frequency.

We have to find the mean of the data.

By direct method,

Mean = ∑fx / ∑f

From the table,

Mean = 362/28

= 12.928

Therefore, the mean is 12.928

✦ Try This: Calculate the mean of the following data:

☛ Also Check: NCERT Solutions for Class 10 Maths Chapter 14

NCERT Exemplar Class 10 Maths Exercise 13.3 Problem 3

Calculate the mean of the following data Class 4-7 8-11 12-15 16-19 Frequency 5 4 9 10

Summary:

In statistics, the mean for a given set of observations is equal to the sum of all the values of a collection of data divided by the total number of values in the data. The mean of the given distribution is 12.928

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