33.5k views
2 votes
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

User Ed Smith
by
6.0k points

1 Answer

1 vote
95% are within 2 standard deviations of the mean, that is, 72∓2×8. The appropriate choice is ...
C) 56 and 88
User Cheluis
by
5.4k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.