Question

An integer is chosen between 0 and under what is the probability that it is not divisible by 7

Answer 1

it cant be because the intiger below 0 are just positvities

Answer 2

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Number of integers between 0 and 100 = n(S) = 99

• Let F be the event ‘integer not divisible by 7’

Number of favourable outcomes to the event F = 99 – Number of integers divisible by 7

= 99-14 = 85

Hence, the required probability = P(F) = n(F)/n(S) = 85/99

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