Question

Four sets of data are shown in box-and-whisker plots. Which set has the largest INTERQUARTILE RANGE?
A
B
C
D

Answer 1

Hint:

Interquartile range = IQR

IQR = Q3 - Q1

Answer 2

THis is kind of obvious

Answer 3

I know how to find IQR. I keep getting the same IQR for two of the plots.

Answer 4

for plot A, what is the IQR?

Answer 5

20

Answer 6

what is Q3 for plot A?

Answer 7

wait sorry, Q3 is 75 and Q1 is 55

Answer 8

both incorrect

Answer 9

those are the max and min

Answer 10

the right edge of the box is Q3

Answer 11

where the box literally starts is Q1 , and where the box ends is Q3. And like jim said above, the IQR = Q3 - Q1.

Now look at the first one....Q3 = 70 and Q1 = 60...making the IQR (70 - 60) = 10.
I think you can figure it out now.