Question

5. The third quartile of the data 12, 15, 20, 28, 30,
40, 50 is​

Answer 1

Given  : data 12, 15, 20, 28, 30, 40, 50  

To Find :  third quartile of the data

Solution:

data 12, 15, 20, 28, 30, 40, 50  

Already arranged in order

12, 15, 20, 28, 30, 40, 50  

( 12 , 15 , 20 ) , 28 , (30 , 40 , 50)

Q₂ = 28   Median

Lower 1st Half 12 , 15 , 20  

Q₁ = 15

Upper 1st Half 30 , 40 , 50

Q₃ = 40

third quartile of the data = 40

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