SOLUTION: Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. μ = 4.8; σ = 2.4 P(3 ≤ x ≤ 6)

Algebra ->  Parallelograms -> SOLUTION: Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. μ = 4.8; σ = 2.4 P(3 ≤ x ≤ 6)      Log On


   



Question 378055: Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability.
μ = 4.8; σ = 2.4
P(3 ≤ x ≤ 6)

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
First find the z scores.
z=%28x-mu%29%2Fsigma=%28x-4.8%29%2F2.4
z%5B1%5D=%283-4.8%29%2F2.4=-0.75
z%5B2%5D=%286-4.8%29%2F2.4=0.25
Now find the probability.
highlight%28P=P%28z%5B2%5D%29-P%28z%5B1%5D%29%29