Question

Fan + MEDAL! Find the interquartile range of the data.

3 | 1 3 5
4 | 1 3 6 8 9 9
5 | 0

A.
49

B.
35

C.
16

D.
14

Answer 1

@LiteNing1337

Answer 2

Ok

Answer 3

1. find the median value in the stem and leaf plot

2. find the lower quartile or median of the lower half of the data

3. find the upper quartile or median of the upper half of the data.

4. the Interqartile range (IQR),

IQR = Upper Quartile - Lower Quartile

give it a try i ll guide u through it , hope this helps

Answer 4

The median is 42.5

Answer 5

I added all of the numbers and then divided by the total amount of numbers..
And I did it 3 times, and always got 42.5

Answer 6

i got 42.5 too

Answer 7

so, now what do I do?

Answer 8

find the lower quartile or median of the lower half of the data

Answer 9

so, divide 42.5 by 2?

Answer 10

21.25

Answer 11

now find the upper quartile or median of the upper half of the data.

Answer 12

21.25?

Answer 13

noo

Answer 14

You said "upper half"

Answer 15

I'm stuck.

Answer 16

ok this will help you , i got these step of a website
1. How many data points have you here?
2. Separate the left five data points (the five smallest ones) from the right five (the five largest ones).
3. Find the middle data point in each set of five. The midpoint ofthe left five data points is Q1, the first quartile. The midpoint of the right five is Q3, the third quartile.
4. Subtract Q1 from Q3. This difference is the IQR: interquartile

Answer 17

31 33 35 41 43 - smaller five 46 48 49 49 50 -larger five

Answer 18

nope

Answer 19

the middle of the smaller numbers is 36.6.

Answer 20

What?

Answer 21

give me a min i ll explain :)

Answer 22

Ok. :)

Answer 23

how about u use this enter all ur data like 31,33,35....
https://www.easycalculation.com/statistics/box-plot-grapher.php

Answer 24

and u see that what is 1st quad and 3rd quad

Answer 25

let me know ur answer ?

Answer 26

3rd quartile is 44.5 - 49. 1st quartile is 35 - ?.

Answer 27

44.5?

Answer 28

3rd quad is 49 and 1st quad 35

Answer 29

IQR = Upper Quartile - Lower Quartile

Answer 30

what u get

Answer 31

http://prntscr.com/9ipvvk

Answer 32

what is 49-35

Answer 33

14! Thanks!

Answer 34

no problem hope u got what 1st quad and last quadrant is ?

Answer 35

1st quad is 35 and last quad is 49

Answer 36

good and if u have sometime just go to Khan academy and write ur topic and they have free good videos on that they are not that long just 5-10 min

Answer 37

Thanks!