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Age in years 10 - 14 15 - 19 20 - 24 25 - 29 30 - 34
Frequency 6 8 14 10 12

 

In which group is the upper quartile?

A.

15 - 19

B.

20 - 24

C.

25 - 29

D.

30 - 34

Correct answer is C

The upper quartile occurs at the 3N4 position.

= 3×504=37.5

This occurs in the class 25 - 29.



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