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Tpy6a [65]
3 years ago
14

At a raffle, 1000 tickets are sold for $5 each. There are 20 prizes of $25, 5 prizes of $100, and 1 grand prize of $2000. Suppos

e you buy one ticket. 1. Use the table below to help you construct a probability distribution for all of the possible values of X and their probabilities.
2. Find the mean (expected value) of your net gain X, and interpret what this value means in the context of the game.
3. If you play in such a raffle 100 times, what is the expected value of your net gain? (Hint: Use your answer from #2.)
4. What ticket price would make it a fair game? (The game is “fair” if the money is balanced so that neither side, the players or the organizers of the raffle, wins/loses money on average.)
5. Would you choose to play the game? In complete sentences, explain why or why not.
6. If you were organizing a raffle like this, how might you adjust the ticket price and/or prize amounts in order to make the raffle more tempting while still raising at least $2000 for your organization?
Mathematics
1 answer:
postnew [5]3 years ago
5 0
Ducks can fly so good.....ITS 3/4
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4 years ago
A store owner is interested in opening a second shop. She wants to estimate the true average daily revenue of her current shop t
Alex
Every confidence interval has associated z value. As confidence interval increases so do the z value associated with it. 
The confidence interval can be calculated using following formula:
\overline{x} \pm \frac{zs}{\sqrt n}
Where \overline{x} is the mean value, z is the associated z value, s is the standard deviation and n is the number of samples.
We know that standard deviation is simply a square root of variance:
s=\sqrt{315900.20}=\$562.05
The confidence interval of 95% has associated z value of <span>1.960.
</span>Now we can calculate the confidence interval for our income:
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6 0
3 years ago
Dave and Busters charges 2.50 per game in the arcade plus a one-time entrance fee of $10.
AnnZ [28]

Answer:

C) y = 2.50x + 10

Step-by-step explanation:

Equation C is saying:

total cost = 2.50(number of games) + $10 entery fee

Hope this helps :)

6 0
3 years ago
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A park has a length to width ratio of 7:4 and the perimeter of the park is 880 meters. What are the length and width of the park
Schach [20]

Step-by-step explanation:

Ratio of length to width = 7 : 4

length = 7x

width = 4x

7x + 4x = 11x

length = 880

880 + 4x = 11x

880 = 11x - 4x

880 = 7x

\frac{880}{7}  = x

125.71 = x

width = 4x

= 4(125.71)

= 502.85

3 0
3 years ago
Which sign makes the statement true?<br> &gt;<br> =
Katyanochek1 [597]

Answer:

none of them its <

Step-by-step explanation:

4 0
3 years ago
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