# Question: in a normal distribution with a mean of 90 and...

###### Question details

In a normal distribution with a mean of 90 and a standard deviation of 10, which of the following scores lie within +/- one standard deviation from the mean?

Select one:

a. 10 - 100.

b. 10 - 90.

c. 80 - 100.

d. 70 -110.