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A fair die was thrown three times and the outcome was repeatedly six. If the die is thrown again what is the probabilityof getting six?
Question

A fair die was thrown three times and the outcome was repeatedly six. If the die is thrown again what is the probabilityof getting six?

A.

1/6

B.

1/216

C.

1/1296

D.

1

Correct option is A

Given:

  • A fair die was thrown three times, and each time the result was 6.
  • It is now thrown again.
  • We are asked: What is the probability of getting a 6 on this new throw?

Formula Used:

Probability=Total number of favourable outcomesTotal number of outcomes\text{Probability} = \frac{\text{Total number of favourable outcomes}}{\text{Total number of outcomes}}

Solution:

Sample space of throwing a die is {1, 2, 3, 4, 5, 6}

∴ The probability of getting a 6 is 1/6.

The given die was thrown three times and the outcome was repeatedly six.

If thrown again, then it is a new event, independent of the previous one.

∴ the probability remains the same.

Required probability is 1/6.

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