Question

2. A dealer has a stock of eight similar television sets which he rents out to...

2. A dealer has a stock of eight similar television sets which he rents out to customers on a weekly basis. The weekly demand for these sets is known to have a particular distribution with mean 5.5.

a. Find the probability, correct to 3 decimal places, that in a given week at least three of the sets will be rented out.

b. Find the probability, correct to 3 decimal places, that in a given week at least three of the sets will NOT be rented out.

c. Write an expression for the probability that in a given week the demand exceeds the stock available.

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

2)

Let X denote the number of sets out of 8 that have been rented.

Then

Now,

So,

a)

Required probability =

b)

Required probability =

c)

Required probability = P( in a given week the demand exceeds the stock available) =

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