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Mean and Outlier

Authored by Anthony Clark

Mathematics

6th Grade

Mean and Outlier
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Gabriella’s quiz grades are shown below.
88, 92, 92, 96, 98
Gabriella scored a 20 on her sixth quiz. What effect does this score have?

The low score causes the median to increase.

The low score causes the median to decrease.

The low score causes the mean to increase.

The low score causes the mean to decrease.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A value that is much higher or much lower than the other values in a set of data.

Outlier

Mean

Median

Mode

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Identify the outlier for the given data?

23, 34, 27, 7, 30, 26, 28, 31, 34

7

23

31

34

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Your math grades are 90, 85, 0, 90, 80, 100, and 90. Which grade is the outlier?

90

0

80

100

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A bowler had the following scores after 5 games:
 196, 205, 197, 280, and 202.
How much does the bowler’s mean score increase if the outlier is considered, compared to if the outlier is not considered?

13

16

19

22

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Given the following data set
6, 9, 12, 14, 7, 9, 6, 8, 25, 12, 14
What is the mean of the data set without the outlier(s)?

9.2

9.7

11.1

12.4

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

12,14,11,12,18,15,9, 32
What is the Mean with the outlier?

12

13

15.4

9

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