Math, asked by wwwamangarg3553, 11 months ago

The upper limit of the median class in the given below data is ________
Class 20 – 30 30 – 40 40 – 50 50 – 60 60 – 70 70 – 80 80 – 90
Frequency 25 15 10 6 24 12 8

Answers

Answered by Alcaa
3

Upper limit of median class is 50.

Step-by-step explanation:

We are given the following frequency distribution below;

   Classes               Frequency (f)                 Cumulative frequency (cf)

   20 - 30                        25                                            25

   30 - 40                         15                                            40

   40 - 50                         10                                            50

   50 - 60                          6                                             56

   60 - 70                         24                                            80

   70 - 80                          12                                            92

   80 - 90                         8                                           100  

                                   \sum f = 100                                                   

Firstly, we will calculate \frac{N}{2}, (where N = \sum f), \frac{N}{2} = \frac{100}{2} = 50.

So, the value of cumulative frequency just greater than or equal to 50 is 50 only.

The corresponding class interval with 50 as cf is 40 - 50.

Therefore, median class is 40 - 50 and the upper limit of this median class is 50.

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