Question

The following dot plot represents Set A.

Calculate the range and interquartile range for this set of data.

Answer 1

@dude

Answer 2

`How many data points are in Set A?`
is this its own question

Answer 3

Range, as the name implies, is the range of the numbers. It is where it begins, and where it ends.

Answer 4

the highest number would be 9 and the lowest being 0 right?

Answer 5

I'm so not good at math omg

Answer 6

ok so how do you calculate the range? you know?

Answer 7

I thought you had to do something though. I thought it was more than just the highest and lowest number

Answer 8

Well, technically you would subtract the lowest number from the highest number, but 9-0=9, so it's 9. The range is the difference between the highest and lowest number

Answer 9

oh ok and then the IQR is next

Answer 10

which I'm even worse at i'm pretty sure.

Answer 11

yea all I have left to do on this one is just the IQR then I'm done.

Answer 12

The IQR is 3 parts,

2nd quadrant, median, and the 3rd quadrant

Answer 13

the median on this is 3 I'm pretty sure.

Answer 14

Oh crepe IQR I mixed this (sort of)

This is range, so you only want the 2nd and 3rd quartile (Also known as the upper and lower quartile)
Do you know how to find these?

Answer 15

not that I know of.

Answer 16

I immediately digress what I said

To find the 2nd quartile it is half of the median and the first point


For example: (if you had points)
1,2,3,3,3,3,4
The median is 3

The lower quartile is 2.5


You do the same process of finding the median but between your median and lowest point

Answer 17

ok so I'm alittle confused. Well I'm always confused but idk, my brain isn't working the best so I'm sorry in advance.

Answer 18

Okay that's fine

I'll walk you through it.

First, write out the points in order

Answer 19

ok.

Answer 20

sorry I've been so back and forth with 1000 things going on

Answer 21

0
0
0
0
1
1
1
1
2
2
2
2
2
3
3
3
3
3
3
3
3
4
4
4
5
9

Answer 22

Okay where is the median (specifically)

Answer 23

the median is in the middle which makes it 3

Answer 24

oh wait.

Answer 25

Yeah but which of the 3's?

First 3? Fourth 3?

Answer 26

oh wait so it is uneven it comes to 2 and 3 (first 3 last 2.) unless I'm getting it wrong.

Answer 27

No that is right, if its between it just means its [in between lol]

Okay split the set of numbers from the median

0
0
0
0
1
1
1
1
2
2
2
2
2
3

Answer 28

ok

Answer 29

1 is the median of the 1st part and 3 is the median of the 2nd.

Answer 30

The number from the 3rd quartile subtracted by the number from the 1st is the iqr

Answer 31

thank you

Answer 32

so it's 2

Answer 33

Yes

Answer 34

thank you thank you!!