Question: Help ! With explanation if possible? This stuff makes my brain hurt .. Question 11 The distribution of the amount of money spent by students

Help ! With explanation if possible? This stuff makes my brain hurt ..

Question 11 The distribution of the amount of money spent by students on textbooks in a semester is Type numbers in the boxes. approximately normal in shape with a mean of 436 and a standard deviation of 28. aby Part 1: 5 points ab/ Part 2:5 points According to the standard deviation rule, approximately 95% of the students spent between 10 points $ and $ on textbooks in a semester. Question 12 The distribution of IQ (Intelligence Quotient) is approximately normal in shape with a mean of Type numbers in the boxes. 100 and a standard deviation of 19. 10 points According to the standard deviation rule, % of people have an IQ between 62 and 138. Do not round. Question 13 The distribution of IQ (Intelligence Quotient) is approximately normal in shape with a mean of Type numbers in the boxes. 100 and a standard deviation of 13. 10 points According to the standard deviation rule, only % of people have an IQ over 126

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