I need to see steps in Q 45 In what range do the middle 95 o

I need to see steps in Q 4,5

In what range do the middle 95% of all yearly returns lie? The market is down for the year if the return on the index is less than zero. In what proportion of years in the market down? In what proportion of years does the index gain 25 % or more? Given a distribution that is normal with N(?, 3). If 10% of the data is greater than 17, find my. The deciles of any distribution are the points that mark off the lowest 10% and the highest 10%. What are the deciles of the standard Normal distribution? A Student wonders if tall women tend to date taller men than do short women. She measures herself, her dormitory roommate, and the in the adjoining rooms; then she measures the next man each Here are the data (heights in inches):

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