AnswersConcepts in Probability and Statistics ARange and Interquartile Range

Range and Interquartile Range Answers

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1
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Which of the following are measures of spread? Select all that apply.

A
Range
B
Outliers
C
Interquartile range
D
Mean
E
Median
F
Quartiles
2
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Lower quartile =

Answer not available
3

Upper quartile =

Answer not available
4

Interquartile range =

Answer not available
5

Question text not available

Answer not available
6

Which statements are true about the interquartile range? Select all that apply.

A
Subtract the lowest and highest values to find the interquartile range.
B
Interquartile ranges are not significantly impacted by outliers.
C
Lower and upper quartiles are needed to find the interquartile range.
D
A small interquartile range means the data is spread far away from the median.
E
The data values should be listed in order before trying to find the interquartile range.
7

What do you know about this data before finding the range or the interquartile range? 187, 191, 202, 209, 218, 1984

A
The values are not in order.
B
The outlier will have no affect on the range.
C
The data has an outlier, therefore the interquartile range is much greater than it would be without the outlier.
D
The data has an outlier, therefore the range will be much greater than it would be without the outlier.
8

Which is true about the two sets?

A
Set 1 has a range of 40 and a median of 85.
B
Set 2 has a range of 74 and a median of 62.
C
Both sets have an interquartile range of 27.
D
Set 2 has data that is closer to its median than Set 1.
9

Median =

A
3.5
B
4
C
5
D
6
E
7
10

Range = X 1837✔ 4648

Answers:
Selection 1:46
Selection 2:72
Selection 3:38.5
Selection 4:32 and 45
Selection 5:13
11

Range =

A
18
B
20
C
37
D
48
12

Question text not available

Answer:

PENDING

13

The range for new cars was 31. The range for used cars was 75. Subtract the highest and lowest numbers.

A
The range for new cars was 31.
B
The range for used cars was 75.
C
Subtract the highest and lowest numbers.
14

Question text not available

Answer:

PENDING

15

Check all that you included in your explanation.

A
Bobby’s interquartile range is 113.
B
Amelia’s interquartile range is 179.
C
A lower interquartile range is clustered closer to the median than a higher interquartile range.
16

Which of the following are measures of spread? Select all that apply.

A
Range
B
Outliers
C
Interquartile range
D
Mean
E
Median
F
Quartiles
17

Which statements are true about the interquartile range? Select all that apply.

A
Subtract the lowest and highest values to find the interquartile range.
B
Interquartile ranges are not significantly impacted by outliers.
C
Lower and upper quartiles are needed to find the interquartile range.
D
A small interquartile range means the data is spread far away from the median.
E
The data values should be listed in order before trying to find the interquartile range.
18

What do you know about this data before finding the range or the interquartile range? 187, 191, 202, 209, 218, 1984

A
The values are not in order.
B
The outlier will have no affect on the range.
C
The data has an outlier, therefore the interquartile range is much greater than it would be without the outlier.
D
The data has an outlier, therefore the range will be much greater than it would be without the outlier.
19

Which is true about the two sets?

A
Set 1 has a range of 40 and a median of 85.
B
Set 2 has a range of 74 and a median of 62.
C
Both sets have an interquartile range of 27.
D
Set 2 has data that is closer to its median than Set 1.
20

Median =

Answers:
Selection 1:7
Selection 2:3.5
Selection 3:8.5
Selection 4:5

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