SOLUTION: 8.1 #6 Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean μ=176 days and σ=9 days. A: What is the probability

Algebra ->  Probability-and-statistics -> SOLUTION: 8.1 #6 Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean μ=176 days and σ=9 days. A: What is the probability       Log On


   

Question 1077654: 8.1 #6
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean μ=176 days and σ=9 days.
A: What is the probability that a randomly selected pregnancy lasts less than 173 days?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
It would be a z < (173-176)/9 or z< (-1/3)
That probability is 0.3694