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Suppose that people's heights (in centimeters) are normally distributed, with a mean of 175 and a standard deviation of 6. We f...Asked by Urgen please help
Suppose that people's heights (in centimeters) are normally distributed, with a mean of 175 and a standard deviation of 6. We find the heights of 60 people.
(a) How many would you expect to be between 167 and 183 cm tall?
(b) How many would you expect to be taller than 170 cm?
(a) How many would you expect to be between 167 and 183 cm tall?
(b) How many would you expect to be taller than 170 cm?
Answers
Answered by
bobpursley
http://davidmlane.com/hyperstat/z_table.html is an excellent calculator. Enter mean, std deviation, then look at the shaded areas. You can multipy those by 60 to get numbers.
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