SOLUTION: The World Hunger network administers a test to all applicants to measure their knowledge of the problem of world hunger. The name of the test is "The Hunger-I" The Hunger- I has be

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Question 913014: The World Hunger network administers a test to all applicants to measure their knowledge of the problem of world hunger. The name of the test is "The Hunger-I" The Hunger- I has been standardized so that it has a mean of 100 and a standard deviation of 10. what percent of applicants to the world hunger network score above 130? what percentage score between 90 and 110? what percent score less than 80? What percent score between 120 and 130?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
a mean of 100 and a standard deviation of 10
P ( x>130) = P(z < 3) = normalcdf(3,100)
P(90 < x < 110) = normalcdf(90,110,100,10)
P(x < 80) = P( z < -2) = normalcdf(-100, -2)
P(120 < x < 130) = normalcdf(120,130,100,10)