Question

For a daily airline flight between two cities, the number of pieces of checked luggage has a mean of 380 and a standard deviation of 20. What number of pieces of checked luggage is 3 standard deviations above the mean?

Answer 1

Divide

Answer 2

divide what? @Nalias

Answer 3

Divide by 380 in 20 i mean

Answer 4

thats 19

Answer 5

so all you have to do is
380 + 3*20

Answer 6

since 1 standard deviation is 20