A town's average snowfall is 45 cm per year with a standard deviation of 9 cm.Using a Normal model,what values should border the middle 68% of the model?
A)49.5 cm and 40.5 cm
B)45 cm and 41.94 cm
C)54 cm and 36 cm
D)63 cm and 27 cm
E)46.8 cm and 43.2 cm

Question

Quizplus · Accepted Answer

The middle 68% of a normal distribution is within one standard deviation from the mean. Therefore, the values are 45 cm ± 9 cm, which are 54 cm and 36 cm.

A Town's Average Snowfall Is 45 Cm Per Year with a Standard