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 twelve of one day's bills had a value of at least $43.06, how many bills did the restaurant collect on that day?

Question

Quizplus · Accepted Answer

The Answer of 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 twelve of one day's bills had a value of at least $43.06, how many bills did the restaurant collect on that day?

The Daily Dinner Bills in a Local Restaurant Are Normally