SOLUTION: The scores on a National High School English Test are normally distributed with an average sore of 83 and a standard deviation of 6. What is the probability that someone will score

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Question 440004: The scores on a National High School English Test are normally distributed with an average sore of 83 and a standard deviation of 6. What is the probability that someone will score between 80.24 and 96.26?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

*Note: z+=+blue%28x+-+mu%29%2Fblue%28sigma%29

   z = (80.24-83)/6 = -.46    and z =(96.26-83)/6 = 2.21

 P(.46 < z < 2.21) = NORMSDIST(2.21)-NORMSDIST(-0.46) = .9864 - .3228 = .6637