Question

Find the Interquartile Range for Marcus's data.
A.4.5
B.2
C.6
D.2.5

Answer 1

Answer is b.2
Just did it

Answer 2

Answer: B. 2

How I got that answer:

The data set for Marcus is

2, 3, 5, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 10, 10

The five number summary is

• min = 2
• Q1 = 6
• median = 7
• Q3 = 8
• max = 10

So the interquartile range (IQR) is

IQR = Q3 - Q1

IQR = 8 - 6

IQR = 2