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Patrick rolls a number cube, and it lands on 1 eight out of ten times. What is the probability that on the next two rolls, the number cube will land on 1?

Options:
a. {1}\{25}
b. {4}\{25}
c. {1}\{100}
d. {16}\{25}

User Ppreetikaa
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1 Answer

1 vote

Final answer:

If considering a fair die, the probability of rolling a 1 on two consecutive rolls is 1/36. However, if using the experimental probability from the student's experience of rolling 1 eight out of ten times, the answer would be 16/25.

Step-by-step explanation:

The question asks for the probability that a number cube, which has so far landed on 1 in eight out of ten rolls, will land on 1 in the next two rolls.

Assuming a fair six-sided die, the probability of rolling a 1 on any given roll is 1/6. Since each roll is independent, the probability of rolling a 1 twice in consecutive rolls is the product of their individual probabilities: 1/6 multiplied by 1/6, which equals 1/36. None of the provided options match this value. Therefore, either it's a trick question based on the experimental results given (eight out of ten times), or there is a mistake in the question or options provided. However, if we consider the experimental probability (8/10), then the probability of rolling a 1 twice based on the student's outcome would be 8/10 multiplied by 8/10, which equals 64/100 or 16/25. In this case, the correct answer from the options provided, based on experimental probability, would be (d) {16}\{25}.

User Ivivi Vavava
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