Question

Caculate the Lower Quartile and the Upper Quartile and the interquartile range. 20,22,25,28,29,30,32,33,34

Answer 1

@iGreen

Answer 2

Okay, the IQR is Upper Quartile - Lower Quartile

Answer 3

Ok @iGreen

Answer 4

Let's find the lower quartile.

20, 22, 25, 28, 29

What's the middle number here?

Answer 5

25

Answer 6

Yes, so that's the lower quartile.

29, 30, 32, 33, 34

What's the middle number here?

Answer 7

32

Answer 8

Yes, so that's the upper quartile.

Now subtract 32 - 25.

Answer 9

7 @iGreen

Answer 10

Yes, that's our answer.

Answer 11

Well, that's the interquartile range.

Answer 12

What about the interquartile range?

Answer 13

Interquartile range is 7.

Answer 14

Oh ok Thanks @iGreen :)