Based on the Normal model for snowfall in a certain town N(57,8),how many cm of snow would represent the 85th percentile?
A)49 cm
B)48.5 cm
C)65 cm
D)65.3 cm
E)48.7 cm

Question

Quizplus · Accepted Answer

To find the value that represents the 85th percentile in the Normal model N(57,8), we need to use a standard normal table or calculator. Using a calculator, we can use the inverse normal function with a mean of 57 and a standard deviation of 8:

invNorm(0.85, 57, 8) ≈ 65.3

Therefore, the value that represents the 85th percentile is approximately 65.3 cm of snow. So the answer is (D).

Based on the Normal Model for Snowfall in a Certain