AnswersConcepts in Probability and Statistics ARange and Interquartile Range

Range and Interquartile Range Answers

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1
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Set 1Interquartile range =

A
21
B
23.5
C
31
D
42
2
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Which measure of spread was most impacted by the outlier?

A
The range
B
The interquartile range
C
Both were impacted the same
D
Neither was impacted
3

Third group =

A
4, 5 and 7
B
12 and 15
C
4, 5, 7, and 11
D
12, 15, 16, and 18
4

Fourth group =

A
16 and 18
B
15, 16, and 18
C
4, 5, 7, and 11
D
12, 15, 16, and 18
5

Which set contains an outlier?

A
Set 1
B
Set 2
C
Neither has an outlier
D
Both sets have outliers
6

First group =

A
4 and 5
B
7 and 11
C
4, 5, 7, and 11
D
12, 15, 16, and 18
7

Median =

A
7
B
11
C
12
D
15
8

Median =

A
6
B
6.5
C
7
D
9
9

Range =

A
1
B
12
C
13
D
11
10

Second group =

A
5 and 7
B
7 and 11
C
4, 5, 7, and 11
D
12, 15, 16, and 18
11

Lower quartile =

A
5
B
7
C
11
D
12
12

Lower quartile =

A
1
B
2
C
4
D
10
13

Set 2Interquartile range =

A
45
B
50
C
54
D
61
14

Range =

A
41
B
22
C
208
D
230
15

Upper quartile =

A
1
B
12
C
15
D
16
16

Upper quartile =

A
5
B
6
C
7
D
9
17

Which set of data has a wider spread of data?

A
Set 1
B
Set 2
C
There is no difference in spread

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