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# Test12009 - Test 1A Math 1P98 Name Box number(Write your...

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Test 1A Oct 16 2009 Math 1P98 Name ………………………………………………… Box number ……………. (Write your student number on page 2) Answers should be correct to at least 3 significant digits. Leave probabilities as fractions where possible. A non graphing calculator that has only up to 2 lines of display and no List function, may be used. Also a half piece of paper handwritten, not printed or typed, may be brought to the test. Good Luck! ………………………………………………………………………………………… 1. [5 marks] Consider the following histogram of the number of times in a month a runner goes out for a run of at least 5 km. 25 20 15 10 5 16 14 12 8 6 4 2 0 Frequency 7 55 Runs/month a. The sample size is ………runners. b. The mean number of runs/month is found by using formula: and calculates to be : ……… runs/month. c. The class boundaries of the class with the highest frequency are : d. To increase the standard deviation of this data, the histogram bars representing the lowest frequency would have to be moved left toward 0 / right to 15 ? (Circle one.) ……………………………………………………………………………………………. . 2. [6 marks] A running group went for a practice run on a trail. There were 8 male and 12 female runners. a. How many ways can a sample if 5 runners be chosen from these for an interview by the media? b.

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Test12009 - Test 1A Math 1P98 Name Box number(Write your...

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