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What is the IQR (Inter Quartile Range) for the data set?

11 6 19 14 21 7 13 15 15

Question 9 options:

8


9


15


17

User Lyra
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1 Answer

3 votes
arrange in ascending order:-

6 7 11 13 14 15 15 19 21


median = 14
lower quartile = mean of 7 and 11 = 9
upper quatile = mean of 15 and 19 = 17

Interquartile range = 17 - 9 = 8

answer is 8

User Fbiagi
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