Ex 13.2, 12 - A die is tossed thrice. Find probability of odd

Ex 13.2, 12 - Chapter 13 Class 12 Probability - Part 2
Ex 13.2, 12 - Chapter 13 Class 12 Probability - Part 3

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Ex 13.2, 12 A die is tossed thrice. Find the Probability of getting an odd number at least once.A die is tossed thrice Probability of getting an odd number atleast once = Probability of getting an odd number once + Probability of getting an odd number twice + Probability of getting an odd number thrice = 1 – Probability of getting an odd number 0 times = 1 – Probability of getting an even number all 3 times = 1 − 1/2 × 1/2 × 1/2 = 1 − 1/8 = 𝟕/𝟖

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