Find the missing distribution distribution if the median is 32 and the variance is 100
Attachments:
Answers
Answered by
0
Step-by-step explanation:
Given
Find the missing distribution if the median is 32 and the variance is 100
Class interval frequency cumulative frequency
- 0 – 10 10 10
- 10 – 20 x 10 + x
- 20 – 30 25 35 + x
- 30 – 40 30 65 + x
- 40 - 50 y 65 + x + y
- 50 – 60 10 75 + x + y
- 75 + x + y = 100
- Or x + y = 75
- So h/2 = 50/2
- Or f = 30
- C = 10
- Cf = 35 + x
- l = 30
- We know that Median = l + (n/2 – cf / f ) x c
- 32 = 30 + (50 – 35 – x / 30) x 10
- 32 – 30 = 50 – 35 – x / 3
- 2 x 3 = 15 - x
- Or x = 9
- Also x + y = 25
- 9 + y = 25
- Or y = 16
Reference link will be
https://brainly.in/question/2682983
Similar questions