Question

Find the interquartile range for the given set of data.

{23.5, 22.1, 24.0, 28.6, 26.3, 29.2, 21.0, 22.7, 25.5, 22.3, 21.6}
A.
4.2
B.
8.2
C.
48.4
D.
50.2

Answer 1

A. 4.2

Explanation:

put the numbers in order

21.0 , 21.6, 22.1, 22.3, 22.7, 23.5, 24.0, 25.5, 26.3, 28.6, 29.2

Q1 = 22.1

Q2 (median) = 23.5

Q3 = 26.3

Interquartile range (IQR) = Q3 - Q1 = 26.3 - 22.1 = 4.2

Answer 2

A. 4.2

Explanation: