SOLUTION: At one high school, the mean time for running the 100-yard dash is with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the pe

Algebra ->  Probability-and-statistics -> SOLUTION: At one high school, the mean time for running the 100-yard dash is with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the pe      Log On


   



Question 1157648: At one high school, the mean time for running the 100-yard dash is with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are:
Less than 17 seconds

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Need to know the mean
z=(x-mean)/sd
x is 17
sd is 0.9
mu is missing.