SOLUTION: Given that SAT scores have a normal distribution with mean 500 and standard deviation 100, find the probability that the score of a randomly selected student is between 400 and 650

Algebra ->  Probability-and-statistics -> SOLUTION: Given that SAT scores have a normal distribution with mean 500 and standard deviation 100, find the probability that the score of a randomly selected student is between 400 and 650      Log On


   

Question 934995: Given that SAT scores have a normal distribution with mean 500 and standard deviation 100, find the probability that the score of a randomly selected student is between 400 and 650.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
the probability that the score of a randomly selected student is between 400 and 650.
mean 500 and standard deviation 100, z+=+blue%28x+-+500%29%2Fblue%28100%29
.....
P(400 < x < 650) = P(-100/100 < z < 150/100) = normalcdf(-1,1.5) = .7745