Question

How to Calculate mean , median and mode for the following frequency distribution table.​

Answer 1

Step-by-step explanation:

Given

Class 0−10 10−20 20−30 30−40 40−50

Frequency 5 27 58 20 10

(i) Mean

Here

∑fi =120

∑fixi=3030

Mean ( xˉ )=∑fixi /fi= 3030/120

=25.25

(ii) Median

Class Frequency Cumulative frequency

0−10 5 5

10−20 21 32(cf)

20−30(l) 58(f) 90

30−40 20 110

40−50 10 120

(iii) Mode

Class Frequency

0−10 5

10−20 27 fo

20−30(l) 58f1

30−40 20f2

40−50 10

(your step by step solution from here is continue in the pinned picture attached by me.)