The daily dinner bills in a local restaurant are normally distributed with a mean of $28 and a standard deviation of $6
a. Define the random variable in words.
b. What is the probability that a randomly selected bill will be at least $39.10?
c. What percentage of the bills will be less than $16.90?
d. What are the minimum and maximum of the middle 95% of the bills?
e. If 12 of one day's bills had a value of at least $43.06, how many bills did the restaurant collect on that day?
a. daily dinner bills
b. .0322
c. 3.22%
d. minimum = $16.24; maximum = $39.76
e. 2,000
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