Question

The scores on a test are normally distributed with a mean of 120 and a standard deviation of 24. What is the score that is 1 standard deviation above the mean?

a) 144
b) 144
c) 144
d) 144

Answer 1

To find the score that is 1 standard deviation above the mean, add the standard deviation to the mean.

Step-by-step explanation:

The score that is 1 standard deviation above the mean can be found by adding the standard deviation to the mean. In this case, the mean is 120 and the standard deviation is 24. Adding 1 standard deviation (24) to the mean (120) gives us a score of 144.