SOLUTION: Assume the random variable x is normally distributed with mean &#956;=81 and standard deviation &#963;=5. Find the indicated probability. &#8203;P(x<72&#8203;) &#8203;P(x<72&#8

Algebra ->  Probability-and-statistics -> SOLUTION: Assume the random variable x is normally distributed with mean &#956;=81 and standard deviation &#963;=5. Find the indicated probability. &#8203;P(x<72&#8203;) &#8203;P(x<72&#8      Log On


   



Question 1044001: Assume the random variable x is normally distributed with mean μ=81 and standard deviation σ=5. Find the indicated probability.
​P(x<72​)
​P(x<72​)equals=? Round to four decimal places as​ needed

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
P(x<72):
z=(X-mean)/sd
z=(72-81)/5
=-9/5
=-1.8
Probability z<-1.8=0.0359