Exercise 2.66. You are given a fair die. You must decide ahead of time how many times to roll. If you get exactly 2 sixes, you get a prize.

Question

Exercise 2.66. You are given a fair die. You must decide ahead of time how many times to roll. If you get exactly 2 sixes, you get a prize. How many rolls should you take to maximize your chances and what are the chances of winning

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Ivy 1 month 2021-09-19T03:06:34+00:00 1 Answer 0

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    2021-09-19T03:08:17+00:00

    Answer:

    The number of rolls  = 36

    Step-by-step explanation:

    Thinking process:

    A die has six sides (6).

    Thus, the probability of striking a 6 is \frac{1}{6}

    Let the number or sixes be 2

    The number of roles for the die is given the following: (6)^{n} where n is the number of sixes needed.

    Therefore, the number of roles needed = (6)^{2}  = 36

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45:7+7-4:2-5:5*4+35:2 =? ( )