Question

Robert plans to make a box-and-whisker plot of the following set of data.

27, 14, 46, 38, 32, 18, 21

Find the lower quartile, the median, and the upper quartile of the set?

lower quartile: 19.5; median: 29.5; upper quartile: 42
lower quartile: 14; median: 27; upper quartile: 46
lower quartile: 18; median: 27; upper quartile: 38
lower quartile: 16; median: 29.5; upper quartile: 42

Answer 1

First set this set in order from least to greatest. Can you do that?

Answer 2

14,18,21,27,32,38,46

Answer 3

Nicely Done! Now we need to identify the median so we cross out from each side to find the middle number....

Answer 4

So it has to be either B, or C

Answer 5

Correct! :)

Now to find the lower quartile we would find the median of three numbers to the left of the median....so we would find the median in...

\(\huge{14, 18, 21}\)

What would be the lower quartile?

Answer 6

18

Answer 7

Correct :)

Answer 8

So what can only be the answer?

Answer 9

C

Answer 10

\(\Huge{\checkmark}\)