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Math 200 Chap 3 Homework Spring 2010

# Math 200 Chap 3 Homework Spring 2010 - Math 200 Chap 3...

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Math 200 Chap 3 Homework Name: ________________________________ 1. In an effort to estimate the size of elk herds wintering in the Rocky Mountain National Park, the rangers used a small airplane to spot count groups of elk in the park. They found 15 groups of elk and recorded the size of each group as: 21 15 19 16 18 17 17 20 25 7 16 10 16 18 12 (a) Compute the mean, the median and the mode of the data. (b) Describe what each number tells you about the sizes of groups of elk in Rocky Mountain National Park. 2. Black Hole Pizza Parlor instructs its cooks to put a “handful” of cheese on each large pizza. A random sample of six such handfuls were weighed. The weights to the nearest ounce were: 3 2 3 4 3 5 (a) Find the mode, the median and the mean weight of the handfuls of cheese. (b) Find the range and the standard deviation of the weights. (c) A new cook used to play football. He has large hands. His handful of cheese weighs 6 ounces. Replace the 2 ounce data value by 6 ounces. Recalculate the mode, median and mean.

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