The Daily Dinner Bills in a Local Restaurant Are Normally

question 8

Essay

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?

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Definitions:

Split Brain

A condition, often resulting from surgery to treat epilepsy, where the two hemispheres of the brain are disconnected, affecting communication between them.

Prefrontal Lobotomy

A surgical procedure used in the past to treat certain mental disorders, involving the removal or severing of connections to the prefrontal cortex.

Mendel

Gregor Mendel, an Augustinian monk and scientist, is known as the father of genetics for his work on pea plant inheritance.

Genes

Units of heredity made up of DNA that determine specific traits by encoding proteins.