asked 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

asked
User Ed Smith
by
8.5k 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
answered
User Cheluis
by
8.4k points
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