math
posted by apryl on .
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 40 people.
(a) How many would you expect to be between 169 and 181 cm tall?
1
(b) How many would you expect to be taller than 170 cm?
2

Use process indicated in later post.