A school at which amounts of money spent per week by a boarding school student for off-campus food is normally distributed with a mean of 12.74 and standard deviation of 2.88.
1. What proportion of boarding students spend more than $10.00 per week for off-campus food?
2. 30% of boarding students who spend the least amount of money for off- campus food, spend less than how many dollars per week?
3. 25 boarding students selected at random, what is the probability that their mean weekly spending is between $13.00-14.00?
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