Asked by tina
Find the (two) z-scores that bound the middle 40% of the standard normal distribution. please show the work.
Answers
Answered by
PsyDAG
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion and get your Z scores.
You are looking for .20 between the Z scores and the mean, one positive and the other negative.
You are looking for .20 between the Z scores and the mean, one positive and the other negative.
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