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Duplicate of Probability and Statistics Chapter 2 Review Flashcards | StudBud
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Duplicate of Probability and Statistics Chapter 2 Review
Duplicate of Probability and Statistics Chapter 2 Review
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Measures of variation and position.
Flashcards
14 cards
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Practice quiz
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Questions
14
Answers
1
What percentage of the data falls in the area shown?
68%
95%
99.7%
97%
2
What percentage of the data falls in the area shown?
99.7%
97%
95%
68%
3
Find the IQR of the following data
21
22
42
35
4
What percentage of women are between 66.71 and 69.42 inches tall?
47.5%
13.5%
34%
68%
5
Find the z-score for 80.
-0.8
1
0.8
0.2
6
What is the 5 number summary for the following data set?
(2, 2, 3, 6, 9)
(1, 2, 3, 6, 9)
(1, 2, 3, 6.5, 9)
(1, 2, 4 ,6 ,9)
7
Frank scored a 1150 on his SAT and Leah scored a 24 on her ACT. Who scored better?
Leah
Frank
They scored the same
8
Find the mean of the sample.
44
52
48.2
48
9
Which of these test scores are unusual given the following information?
88.5
73.5
81
82
10
Find the z-score for 69.
-3.6
3.6
-2
2.5
11
Which set of data has the smallest standard deviation?
2
4
1
3
12
What percentage of the women are between 58.58 and 69.42 inches tall?
81.5%
47.5%
68%
95%
13
What percentage of the data falls in the area shown?
99.7%
68%
97%
95%
14
Find the standard deviation of the sample.
8
9.25
10.1
8.77
