AS one of her chores Staci must vacum 1/2 of the house. If she has already vacumed 1/3 of her share tonight whatp part of the li
1 answer:
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Answer:
- Expected Value= -$7
- Bill should not play the game
Step-by-step explanation:
In the game, these are the payout:
- 30% of the time you will lose 20 dollars.
- 20% of the time you lose 40 dollars.
- 10% of the time you win 50 dollars
- 40% of the time you win 5 dollars.
To compute the expected value, take note that a loss is negative while a win is positive.
Therefore:
E(X)=(-20*0.3)+(-40*0.2)+(50*0.1)+(5*0.4)
E(X)=-7
- The expected value of the event is -$7.
- Based on the negative expectation, Bill should not play this game as he is expected to incur a loss.
Answer:
Step-by-step explanation:
Rewrite the equation using the next propierties:
Cancel logarithms by taking exp of both sides:
Multiplying both sides by -x and factoring:
Factoring:
The solutions are:
Evaluating x=-4
This is an absurd because ln(x) is undefined for
Evaluating x=-1
Which is correct, hence the solution is: