Q1 of 50 Page 145

The following table shows classification of number of workers and the number of hours they work in a software company. Find the median of the number of hours they work.


⇒ N = 1000



⇒ 500 Lies in class 10-12


⇒ Median class 10-12


L = lower limit of median class = 10


N = sum of frequencies = 1000


h = class interval of median class = 2


f = frequency of median class = 500


cf = cumulative frequency of class preceding median class = 150


⇒ Median


⇒ Median


⇒ Median = 11.4


More from this chapter

All 50 →
5

A frequency distribution of funds collected by 120 workers in a company for the drought affected people are given in the following table. Find the mean of the funds by 'step deviation' method.

 6

The following table gives the information of frequency distribution of weekly wages of 150 workers of a company. Find the mean of the weekly wages by 'step deviation' method.

 2

The frequency distribution table shows the number of mango trees in a grove and their yield of mangoes. Find the median of data.

 3

The following table shows the classification of number of vehicles and their speeds on Mumbai-Pune express way. Find the median of the data.