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garri49 [273]
2 years ago
14

80. A game popular in Nevada gambling casinos is Keno, which is played as follows: 1\venty numbers are selected at random by the

casino from the set of numbers 1 through 80. A player can select from 1 to 15 numbers; a win occurs if some fraction of the player's chosen subset matches any of the 20 numbers drawn by the house. The payoff is a function of the number of elements in the player's selec- tion and the number of matches. For instance, if the player selects only 1 number, then he or she wins if this number is among the set of 20, and the payoff is $2.20 won for every dollar bet. (As the player's probability of winning in this case is i, it is clear that the "fair" payoff should be $3 won for every $1 bet.) When the player selects 2 numbers, a payoff (of odds) of $12 won for every $1 bet is made when both numbers are among the 20. (a) What would be the fair payoff in this case

Mathematics
1 answer:
Dafna1 [17]2 years ago
4 0

Note: Complete Question part

(a) What would be the fair payoff in this case?

Let Pn ,k denote the probability that exactly k of the n numbers chosen by the player are among the 20 selected by the house.

Answer:

the fair payoff is $16.63

Step-by-step explanation:

Find the attachments for complete step by step explanation

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Jenny’s mother is 5 years older than twice Jenny's age. The sum of their ages is 62 years. This is represented by the equation x
Salsk061 [2.6K]

Answer:

Jenny´s age is 19 and her mother is 43.

Step-by-step explanation:

1. Plug in the first value of the set

41 is different from 62, so Jenny isn´t 12 years old.

2. Plug in the second value of the set

50 is different from 62, so Jenny isn´t 15 years old.

3. Plug in the third value of the set

59 is different from 62, so Jenny isn´t 18 years old.

4. Plug in the fourth value of the set

Therefore Jenny´s 19 years old.

5. Calculate Jenny´s mother age:

As the sum of their ages is 62 ages, we have the following equation

where

x=Jenny´s age

y=Jenny´s mother age

Therefore Jenny's mother age is 43 years old.

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2 years ago
Factor 18bc + 9ab + 3cb completely.
Natasha_Volkova [10]

Answer:

3b\left(7c+3a\right)

Step-by-step explanation:

18bc+9ab+3cb

=6\cdot \:3bc+3\cdot \:3ba+3bc

=3b\left(6c+3a+c\right)

=3b\left(7c+3a\right)

6 0
2 years ago
By visual inspection determine the best-fitting regression model for the data plot below
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Answer:

Exponential

Step-by-step explanation:

By visual inspection the graph generated by the points plotted is an exponential graph as the graph curves upward. The graph is also continous and differs from either a decreasing or increasing Linear graph, which shows a straight best of fit pattern. Hence, the graph most closely represents an exponential graph from visual examination.

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Answer:

Workdone = 2450Joules

Step-by-step explanation:

Let the top of the aquarium be at height 0.

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F= 2000◇x × 9.8

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