AnswersFoundations of Math 1Comparing Mean and Median

Comparing Mean and Median — Quiz Answers

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1
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Sora was given two data sets, one without an outlier and one with an outlier. Data without an outlier: 108, 113, 105, 118, 124, 121, 109 Data with an outlier: 108, 113, 105, 118, 124, 121, 109, 41 How is the mean affected by an outlier?

A
The outlier did not affect the mean at all.
B
The mean is centered around all the other numbers in both sets of data.
C
The outlier made the mean lower than all the other values.
D
The outlier made the mean higher than all the other values.
3

Sasha’s daily tips this work week were 43 dollars , 32 dollars , 65 dollars , 88 dollars , 50 dollars , and 72 dollars Is Sasha correct in thinking that the mean accurately represents how much money she makes in daily tips?

A
Yes, Sasha is correct. The mean amount she makes is 58 point 3 3 dollars in a day.
B
Yes, Sasha is correct. The mean amount she makes is 65 point 3 3 dollars in a day.
C
No, Sasha is not correct. The median amount she makes is 60 point 0 0 dollars in a day.
D
No, Sasha is not correct. The median amount she makes is 53 point 0 0 dollars in a day.
5

Which set of data contains two outliers?

A
101, 135, 131, 99, 138, 136, 140
B
141, 151, 138, 142, 149, 140, 150
C
99, 113, 91, 104, 109, 114, 97
D
113, 115, 103, 114, 109, 111, 119
6

Deepali was given two data sets, one without an outlier and one with an outlier. Data without an outlier: 15, 19, 22, 26, 29 Data with an outlier: 15, 19, 22, 26, 29, 81 How is the mean affected by an outlier?

A
The outlier made the mean lower than all the other values.
B
The mean is centered around all the other numbers in both sets of data.
C
The outlier made the mean higher than all the other values.
D
The outlier did not affect the mean at all.
8

Which lists the steps in the correct order to find the median of this data set? 24, 16, 23, 30, 18, 29

A
1. Put the numbers in order. 2. Cross of high/low pairs.
B
1. Cross of high/low pairs.
C
1. Cross off high/low pairs. 2. Add the leftover numbers. 3. Divide the sum by 2.
D
1. Put the numbers in order. 2. Cross off high/low pairs. 3. Add the leftover numbers. 4. Divide the sum by 2.
9

Which set of data contains one outlier?

A
22, 33, 31, 20, 28, 19
B
15, 19, 26, 51, 18, 21
C
18, 20, 16, 22, 28, 26
D
27, 21, 31, 18, 21, 29
10

Zahra was given two data sets, one without an outlier and one with an outlier. Data without an outlier: 15, 19, 22, 26, 29 Data with an outlier: 15, 19, 22, 26, 29, 81 How is the median affected by the outlier?

A
The outlier slightly affected the median.
B
The median is the exact same number in both data sets.
C
The outlier made the median much lower than all the other values.
D
The outlier made the median much higher than all the other values.

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