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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. #zscore #empiricalrule #boxplots #standarddeviation #mean
Flashcards
16 cards
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Practice quiz
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Questions
16
Answers
1
What percentage of the data falls in the area shown?
95%
99.7%
68%
97%
2
Find the z-score for 80.
0.2
0.8
-0.8
1
3
Find the standard deviation of the sample.
10.1
9.25
8
8.77
4
Find the mean of the sample.
44
48
48.2
52
5
What percentage of women are between 66.71 and 69.42 inches tall?
68%
47.5%
13.5%
34%
6
Find the z-score for 69.
2.5
-3.6
3.6
-2
7
Find the IQR of the following data
22
21
42
35
8
What percentage of the women are between 61.29 and 69.42 inches tall?
95%
68%
81.5%
15.85%
9
Which of these test scores are unusual given the following information?
73.5
88.5
82
81
10
What percentage of the women are between 58.58 and 69.42 inches tall?
47.5%
81.5%
68%
95%
11
Frank scored a 1150 on his SAT and Leah scored a 24 on her ACT. Who scored better?
Frank
They scored the same
Leah
12
What are the outliers in this set of data?
1
9
No Outliers
7 and 9
13
What percentage of the data falls in the area shown?
95%
97%
68%
99.7%
14
What percentage of the data falls in the area shown?
95%
97%
68%
99.7%
15
Which set of data has the smallest standard deviation?
4
3
2
1
16
What is the 5 number summary for the following data set?
(1, 2, 3, 6, 9)
(1, 2, 3, 6.5, 9)
(1, 2, 4 ,6 ,9)
(2, 2, 3, 6, 9)
