Question

What is the interquartile range for the following set of numbers?

4, 5, 6, 8, 9, 11, 13, 16, 16, 18, 20, 21, 25, 30, 31, 33, 36, 37, 40, 41

Answer 1

the IQR is Q3 - Q1

Answer 2

do u you have to find the median is the first step

Answer 3

It doesn't say anything about that but if you want to go ahead. c:

Answer 4

okay trust me i just learned this

Answer 5

well the median is 20

Answer 6

a cheat cheat is if the number are least to greatest take your finger and slowy move them at the same time 1 number at a number, and the last number you reach is the middle number which is the median

Answer 7

so to find the Q1 you add all the numbers before 20 a divided it by the toal number in that range before 20

Answer 8

Actually, the median isn't 20.

Answer 9

It's 19.

Answer 10

the toal added toget for q1 is 106

Answer 11

how so bob?

Answer 12

oh i see

Answer 13

When you count the numbers to the right of 20, it adds up to 9, but when you count the numbers to the left of 20, it adds up to 10. Kind of uneven, don't you think ?

Answer 14

i meessed up

Answer 15

stupid fingers

Answer 16

okay so we have 88

Answer 17

Bob swoops in and steals x'D

Answer 18

and divide that by 9 and u have 9.777778

Answer 19

so that is the q1

Answer 20

now Q3

Answer 21

294 divided by 9 is 32.666667

Answer 22

now you minus 9.77778 from that

Answer 23

simply use the interquartile range formula

IQR = xU- xL

Answer 24

;)

Answer 25

*subtract

not minus x'D

Answer 26

.o. ty

Answer 27

so IQR is 22.888889

Answer 28

Rounded to 23.

I've gotta say, Husky's got it locked in.

Answer 29

:D thank you

Answer 30

ty so much >O<