Question: The amount of time students devote to studying Statistics each week is normally distributed with a mean of 7.5 hrs and a standard deviation of

The amount of time students devote to studying Statistics each week is normally distributed with a mean of 7.5 hrs and a standard deviation of 2.1 hrs. 1. Denote the random variable in this problem by the letter X. What is X? 2. What percentage of students study for more than 10 hrs per week? Round to 2 decimal places. 3. What is the amount of time below which only 5% of students spend studying? Round to 2 decimal. 4. Sarah spent 9hrs each week studying statistics. What is Sarah's Z-score? Round to 2 decimal

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