Question

A set of data with a mean of 45 and a standard deviation of 8.3 is normally distributed. Find the value that is +3 standard deviations away from the mean.
A) 20.1
B) 78.9
C) 69.9
D) 48.0

Answer 1

3 standard deviations away would be adding the standard deviation 3 times.

Answer 2

45 + 8.3 + 8.3 + 8.3

Answer 3

so C? @peachpi

Answer 4

yes

Answer 5

thank you

Answer 6

you're welcome