1. The scores in a senior high school entrance exam are normally distributed with mean u = 78.5 and a standard deviation of o = 5. A student whose score is at least two standard deviations above the...

Analyze and solve the following problems.

Extracted text: 1. The scores in a senior high school entrance exam are normally distributed with mean u = 78.5 and a standard deviation of o = 5. A student whose score is at least two standard deviations above the mean will belong to section A, while a student whose score falls within one standard deviation below the mean and two standard deviations above the mean will belong to section B, and the rest will be in section C. Find the range of scores of each section. Solution and answer: