Question: Help ! With explanation if possible. This stuff turns my brain into knots. The distribution of the amount of money spent by students on textbooks

Help ! With explanation if possible. This stuff turns my brain into knots.

The distribution of the amount of money spent by students on textbooks in a semester is Type numbers in the b approximately normal in shape with a mean of: /= 360 and a standard deviation of: o= 20. 10 points According to the standard deviation rule, almost 16% of the students spent more than what amount of money on textbooks in a semester

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