The number of days that homes stay on the market before they sell in Seattle is bell-shaped with a mean equal to 8 days. Further, 95 percent of all homes are on the market between 2 and 14 days. Based on this information, what is the standard deviation for the number of days that houses stay on the market in Seattle?
A) 12
C) 9
D) 3

Question

The number of days that homes stay on the market before they sell in Seattle is bell-shaped with a mean equal to 8 days. Further, 95 percent of all homes are on the market between 2 and 14 days. Based on this information, what is the standard deviation for the number of days that houses stay on the market in Seattle? 
A) 12 
C) 9 
D) 3

Quizplus · Accepted Answer

The Answer of The number of days that homes stay on the market before they sell in Seattle is bell-shaped with a mean equal to 8 days. Further, 95 percent of all homes are on the market between 2 and 14 days. Based on this information, what is the standard deviation for the number of days that houses stay on the market in Seattle? 
A) 12 
C) 9 
D) 3

The Number of Days That Homes Stay on the Market