To determine: The expected daily profit of the states.
The expected daily profit of the states.is $250,000.
Given information:
Lottery game offers $250 pay-outs on a 50-cent ticket.
For play, a person selects a 3-digit number.
If the same number is drawn randomly by the state lottery that day, the person wins.
Formula used:
Here, E is the favourable outcomes and S is the total possible outcomes.
Calculation:
There are 1000 3-digit numbers from 000 to 999.
Out of 1000 numbers 1 number is drawn by the state lottery and they win $250 while the tickets costs $0.50.
Which implies that the state makes a loss of
Substitute 1 for
The other 999 numbers will result in no win and make a profit of $0.50.
Substitute 999 for
The expected value (or mean) is the sum of the product of each possibility
Substitute
Thus, the state makes a profit of $0.25 per person.
Since there are 1,000,000 tickets sold in a day, the expected daily profit of the states is 1,000,000×$0.25 = $250,000.
Chapter 10 Solutions
PRECALCULUS:GRAPHICAL,...-NASTA ED.
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