147- Fall97-test1 - Top Math 147 - Fall 1997 - Test #1...

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Top Math 147 - Fall 1997 - Test #1 Name:______________________________________ Section Number:_______________(2 points) Show ALL your work. Solutions with no work where it is necessary will receive no credit. If in doubt, show everything necessary for the computation. If you need extra paper, use the back of the test or raise your hand and ask a proctor for some. If work is located on the back of a page please indicate this on the front of the page. A normal table is provided at the end of the test. For 1 - 10 (3 points each) circle the answer which best completes the sentence or answers the question. 1. You can compute the standard deviation of a large set of data if you have, a. the maximum, minimum, and average of the entries in the data set. b. all of the entries in the data set. c. the value (entry - average) for each entry in the data set. d. either (a) or (b). e. either (b) or (c) 2. A histogram of data with a long right tail indicates the data, a. has a very large positive average. b. has an average smaller than its median. c. has an average larger than its median. d. was obtained in a manner producing bias. e. both (a) and (c). 3. A study on height of males at Alfred University revealed an average height of 70 inches with a standard deviation of 2.0 inches. Your friend Bill is 78 inches tall, we can conclude, a. the sampling method of the study was biased. b. less than one percent of males at Alfred University are likely to be taller than Bill. c. Bill is four standard units above the average. d.
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This note was uploaded on 05/27/2008 for the course MATH 147 taught by Professor Klimko during the Fall '07 term at Binghamton University.

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147- Fall97-test1 - Top Math 147 - Fall 1997 - Test #1...

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