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Normal Distribution (Ch. 5) Flashcards | StudBud
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Normal Distribution (Ch. 5)
Normal Distribution (Ch. 5)
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Review Normal Distribution (Chapter 5) #BHSAPStats
Flashcards
8 cards
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Questions
8
Answers
1
If men's heights follow N(68,2.5). then 5% of men have heights outside what range?
58 inches to 78 inches
63 inches to 73 inches
60.5 inches to 75.5 inches
65.5 inches to 70.5 inches
2
For the density curve shown below, which statement is true?
The mean and median are equal.
The mean is greater than the median.
None of the above is correct
The mean is less than the median.
3
If yearly snowfall in NH is N(55, ?), if snowfall exceeds 60" in 15% of years, what is std dev?
5.18 inches
8.93 inches
4.81 inches
6.04 inches
4
For the density curve shown below, which statement is true?
The area under the curve between 0 and 1 is 1.
The density curve is normal.
The density curve is skewed right.
The density curve is symmetric.
5
If heights of 99.7% of men are 5'<x<7', then what is a good estimate of std dev of the heights?
6”
1”
12”
4”
6
If bags of Chocolate Chips Cookies are N(16.1,0.1), what % will contain between 16 and 16.1 oz?
68
16
10
34
7
If math SAT scores are N(480,100), what proportion scores 780 or higher?
0.13%
13%
26%
1.3%
8
The area under the standard normal curve corresponding to –0.3<Z<1.6 is
0.3273
0.9542
0.4713
0.5631
