1. Go your your normal area table and find the value for (93-77)/8. This is two standard deviations out, to the area of the normal curve is about 5%, which is the answer.
2. 77-2*8 = 77-16 = 61
3. Not sure what they are referring to here.
Ice R.
asked 09/02/16Randi G. answered 09/02/16
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