Question

MEDAL AND FAN, PLEASE!!!

If the outliers are not included, what is the mean of the data set?

72, 82, 3, 55, 62, 73, 90, 80, 151, 59, 46, 31

59
65
67
73

Answer 1

Which numbers do you think are outliers?

Answer 2

3 and 151?

Answer 3

Yep so you just find the mean without including them :)

Answer 4

Ooh so it'd be 59?

Answer 5

Thanks! Could you help me with a few more?

Answer 6

I got 65.28571428571429 lol

Answer 7

Sure!

Answer 8

Yay

Answer 9

Which of the following is true of the data represented by the box plot?

box plot with point at 15, min at 17, Q1 at 51, median at 65, Q3 at 74, max at 90

The data is skewed to the bottom and contains one outlier.
The data is skewed to the top.
The data has a symmetrical distribution and contains no outliers.
The mean is most likely greater than the median.

Answer 10

Theres the graph.

Answer 11

What do you think this is similar to the other question we did

Answer 12

The data is skewed to the bottom and contains outlier is my guess, but i thought it's skewed at the top?

Answer 13

Nope you're right it's skewed to the bottom and contains one outlier :)

Answer 14

Sweet, what about this question

Answer 15

When the outliers are removed, how does the mean change?

The mean remains the same.
The mean decreases by 2.
The mean increases by 2.
There are no outliers.

Answer 16

What do you think the outliers are?

Answer 17

Outliers are 15 and 35

Answer 18

The mean remains the same would be the answer right?

Answer 19

Exactly so first we're gonna add up all of the numbers and divide them, then we will remove the two outliers, add up the rest of the numbers and divide them
Then we can see the difference

Answer 20

Thanks!! Mind helping me with one more? :D

Answer 21

A student wants to report on the number of books her friends read each week. The collected data are below:

Which measure of center is most appropriate for this situation and what is its value?
Median; 2
Median; 4
Mean; 2
Mean; 4

Answer 22

Yep the mean remains the same 25 :)

Answer 23

0 l 24 l (one) l 4 l 5 l 2 l 5 l 4 l

Answer 24

Mind helping me with that?

Answer 25

Well which do you think is the more appropriate method mean or median

Answer 26

Mean, because you wouldn't be able to find the median?

Answer 27

You could find the median but it wouldn't be as accurate as the mean because we have an outlier of 24 present

Answer 28

Right, so we'd find the mean. Would the mean; 4?

Answer 29

I think so

Answer 30

Thanks :)

Answer 31

No problem :)