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24-05-2017
Mathematics

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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

Respuesta :

Аноним Аноним

24-05-2017

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

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