Question

If a dice is rolled thrice find the probility of odd at least once

Answer 1

The probability of getting an odd (or even) number at least once in a roll of die = 1 - probability of not gettiing an odd (or even) number in any of the throws.

In one roll of die, the probability of getting an odd (or even) number is 36=12 as there are three odd numbers and three even numbers.

Therefore, probability of getting an even number on three rolls of the die = 12 × 12 × 12 = 18

The probability of getting an odd (or even) number at least once in a roll of die = 1 - probability of not gettiing an odd (or even) number in any of the throws.

⇒The probability of getting an odd number at least once in a roll of die = 1 - probability of not gettiing an odd (i.e. getting only an even on all rolls) number in any of the throws = 1 - 18=78

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Answer 2

Answer:

Step-by-step explanation:

Probability = 7 /8