Q3 of 50 Page 145

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

The class is discontinuous between 69-74 and 75-79


Converting the to continuous class



⇒ N = 200



⇒ 100 Lies in class 74.5-79.5


⇒ Median class 74.5-79.5


L = lower limit of median class = 74.5


N = sum of frequencies = 200


h = class interval of median class = 5


f = frequency of median class = 85


cf = cumulative frequency of class preceding median class = 99


⇒ Median


⇒ Median


⇒ Median = 74.558


More from this chapter

All 50 →
1

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.

 2

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

 4

The production of electric bulbs in different factories is shown in the following table. Find the median of the productions.

 1

The following table shows the information regarding the milk collected from farmers on a milk collection centre and the content of fat in the milk, measured by a lactometer. Find the mode of fat content.