Question

Engineers in a company mananged to solve the probability linked to the annual driving ticket fee....

Engineers in a company mananged to solve the probability linked to the annual driving ticket fee. The result was:

X (# of tickets annually) 0 1 2 3 4 5 6
P(X=x) 0.2 0.25 0.2 0.15 0.1 0.05 0.05

1. What is the expected value of X? How many tickets is expected for the average driver to have?

2.The police department decides to add a surcharge in accordance to the formula 100X2. If a random person is selected,what would be the expected value of total payment for the driving ticket? If there are a million drivers, how much in earnings is expected annually for the surcharge concept?

Homework Answers

Answer #1

1. The expected value of X =

Since the number of tickets is an integer so

2 tickets are expected for the average driver to have.

2).

Let,

the expected value of total payment for the driving ticket =

Then E(Y)=705

If a random person is selected, the expected value of the total payment for the driving ticket will be 705 units.

If there are a million drivers, the expected earning is units.

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