Q7 of 33 Page 14

Consider the following distribution of daily wages of 50 workers of a factory.


Find the mean daily wages of the workers of the factory by using an appropriate method.

To find: The mean


Formula used:


Assumed Mean method:


Mean = A +


Explanation:


Let the assumed mean (A) = 150



We have, A = 150


h = 20


Mean = A +




= 150 – 4.8


= 145.2


More from this chapter

All 33 →
5

The following is the distribution of height of students of a certain class in a certain city.


Find the median height.

 6

Find the mean from the following frequency distribution of marks at a test in statistics:

 8

Following is the distribution of I.Q of 100 students. Find the median I.Q.

 9

An incomplete distribution is given as follows:


It is given that the median value is 35 and the sum of all the frequencies is 170. Using the median formula fill up the missing frequency.