SOLUTION: find the z scores that bound the middle 60% of the area under the standard normal curve

SOLUTION: find the z scores that bound the middle 60% of the area under the standard normal curve

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Question 1058905: find the z scores that bound the middle 60% of the area under the standard normal curve
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
For the middle to contain 60%, then the tails must contain 40% total or each must have 20%.
So find a such that then you'll know that

So,

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