When Mrs. Myles gave a test, the scores were normally distributed with a mean of 72 and a standard deviation of 8. This means that 95% of her students scored between which two scores?
A) 40 and 100
B) 48 and 96
C) 56 and 88
D) 64 and 80
In a normal distribution, 95% of the data lies within two standard deviations of the mean. Add and subtract 8 to and from 72 twice and the correct answer is between 56 and 88.
