SOLUTION: A teacher says that the top 10% of the class received an A on the last test. The scores were normally distributed with mean 65 and standard deviation 20. Find the minimum score req

Question 1026130: A teacher says that the top 10% of the class received an A on the last test. The scores were normally distributed with mean 65 and standard deviation 20. Find the minimum score required to get an A.
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!

<==>
By referring to a table of standard normal values, we find that

==> ,
==> the minimum score to get an A is 91.
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