Posted by shelly on Sunday, October 2, 2011 at 5:11pm.
The mean = sum of scores/number of scores(100).
What frequency table do you have?
Suppose that people's heights (in centimeters) are normally distributed, with a mean of 165 and a standard deviation of 6. We find the heights of 100 people.
(a) How many would you expect to be between 157 and 173 cm tall?
(b) How many would you expect to be taller than 160 cm?
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