A fairground manager wishes to design a game where her customers win 10p each time they choose a cup with 10p under it. Under all but one of the cups there is 10p. The customer pays £1 and has n attempts at winning 10p. After each guess the game is reset. She wants the mean number of successes to be 9 and the standard deviation to be at most 2. What is the least number of cups, c, she can use and how many attempts should each customer be allowed?

Q: The values listed below are waiting times​ (in minutes) of customers at two different banks. At…

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Q: NAME: Period: Team Seat #: 1-70. Imagine that you have a bag containing 10 marbles of different…

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Q: Find mean if n is 20 and p is 0.6

A: Given: Number of trials (n)=20 Probability of success (p)= 0.6

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Q: Ruth, the owner of a mail-order business, estimates that the probability that a household receiving…

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Q: Is the average time to complete an obstacle course different when a patch is placed over the right…

A: From the provided information, Sample size (n) = 8 Level of significance (α) = 0.05

Q: 12. From each penalty Christiano Ronaldo takes, probability that he: a. Scores all in his next 10…

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Q: find mean if n is 4 and p is 0.2

A: According to the provided information, n =4 p =0.2

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Q: n is 10 p is 0.2 Find mean.

A: According to the provided information. n = 10 p = 0.20

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Q: The average of 7 consecutive even integers is 20. What is the median

A:

Q: Find mean if n is 7 and p is 0.2

A: According to the provided information, n = 7 p = 0.2

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Q: Find mean if n is 7 and p is 0.5

A: Given, n=7 p=0.5

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A: The cost of the game is $6.75.

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A: The data shows four gifts with a mug, a t-shirt, a plush toy, and a water bottle.

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Q: Find mean if n is 2 and p is 0.4

A: Given n=2 p=0.4

Q: Find mean if n is 2 and p is 0.8

A: Given: n=2 p=0.8 The mean is obtained as below: Mean=n×p=2×0.8=1.6 Thus, the mean is 1.6.