The median from the following distribution  Class: 5−1010−1515−2020−2525−3030−3535−4040−45 Frequency: 5615105422

# The median from the following distribution

1. A

19

2. B

19.5

3. C

20

4. D

18

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### Solution:

First we prepare the following table to compute the median

We have $N=49$

$\frac{N}{2}=\frac{49}{2}=24.5$

The cumulative frequency just greater than N /2 is 26 and the corresponding class is 15-20. Thus 15-20 is the median class such that

$l=15,f=15,F=11,h=5.$

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