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Unformatted text preview: Data 42 35 28 21 14 77 a b c d dol ars Frequency 2500 2000 1500 1000 18 16 14 12 10 8 6 4 2 5 17 16 12 Histogram of prices, dollars Test 1B Math 1P98 October 12 2007 Time 1 hour. Name Box number .. Use at least 3 significant digits in all answers. A handwritten half piece of yellow paper and a calculator with a maximum of two lines of display are the only items allowed for the test. Plan your time well. Show proper format. Good Luck! .. 1 . (2 marks) Consider the lengths of time five customers in a computer store have owned their present computer, years: 4.1, 5.3, 3.7, 4.5, 3.8 Use short cut key on your calculator find that the mean age of their computers is .years and the standard deviation of the computer age is ....years 2 . (4 marks) Draw a labeled boxplot of the number of computers in a household using the sample data, 1, 1, 1, 2, 2, 3, 3, 3, 3, 5, 5, 7. 3. (3 marks) The histogram shows the prices of computers purchased by a sample of 50 customers....
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 Fall '11
 D.Miners
 Math

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