From the following frequency distribution find the median class

Asked by admin @ 13/08/2021 in Math viewed by 425 People

From the following frequency distribution, waht is the median class ?

Cost of living index 1400–1550 1550–1700 1700–1850 1850–2000Number of weeks 8 15 21 8

Answered by admin @ 13/08/2021

Given : frequency distribution

Cost of living index 1400–1550 1550–1700 1700–1850 1850–2000

Number of weeks 8 15 21 8

To Find : Median Class

Solution:

Cost of living index
Number of weeks f CF

1400–1550 8 8

1550–1700 15 23

1700–1850 21 44

1850–2000 8 52

52/ = 26

23 < 26 < 44

Hence Median Class is 1700–1850

Median = 1700 + 150 x ( 26 - 23)/21

= 1700 + 21.43

= 1721.43

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