Question

(brainiest and 50 points)A data set is made up of these values.
1, 4, 5, 6, 6, 9, 11
Find the interquartile range.
A. 4 – 1 = 3

B. 11 – 9 = 2

C. 11 – 1 = 10

D. 9 – 4 = 5

Answer 1

• Median of lower half (1,4,5) is 4
• Median of upper half(6,9,11) is 9

Interquartile range or IQR is difference of above medians

$\\ \tt\longmapsto 9-4=11$

Option D is correct