Final review 1

5to375 11 answerkey testnamem118finalreview 1 2 3 4 5

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Unformatted text preview: ard deviation ________________________________ 10 34) A company guarantees customer satisfaction on the purchase of a product, or the company will refund the purchase price of the product. Previous experience has shown that 10% of the purchases are returned. What is the probability that a) no more than 1 of the next 7 purchases will be returned? ___________________ b) exactly 2 purchases will be returned? __________________________________ 35) Find the mean and median for the following grouped data. Interval Frequency 9.5- 12.5 2 12.5- 15.5 3 15.5- 18.5 8 18.5- 21.5 4 mean ________________________________ median________________________ 36) . The weekly record of reported accidents in a large auto assembly plant in a random sample of 35 weeks from the past 10 years is listed below: 34 33 36 35 37 31 37 39 34 35 37 35 32 35 33 35 32 34 32 32 39 34 31 35 33 31 38 34 36 34 37 34 36 39 34 a) Construct a frequency and relative frequency table using class intervals of width 2 and starting at 29.5. b) Construct a histogram. c) Construct a frequency polygon. d) Construct a cumula...
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