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AP Statistics / Mr. Hansen |
Name: ____________________________ |
Quiz on Chapter 2
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Instructions: Show your work and circle your
answers. Calculator notation is not permitted unless you cross it out. |
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1. |
Assume that men’s heights
(in inches) follow the N(69,
2.5) distribution. Determine the percentage of men whose heights are between 72
and 74.5 inches. |
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2. |
SAT Verbal scores are
approximately normal with mean of 500, s.d. of 100.
Compute the z-score and percentile
for a student whose SAT Verbal score is 670. |
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3. |
City employee
salaries at Grade 8 in Smallville are normally
distributed with mean $28,000 and s.d. $2,400.
Compute the first quartile, median, and third quartile. |
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4. |
Explain how to evaluate the
normality or skewness of a data set. What tool
would you use? How would you interpret what it tells you? |