Question

A box contains card numbered 1-7 If one card is drawn at random from the box, find the probability that it bears a prime number

Answer 1

Out of 1-7....2,3,5,7 are prime numbers.

No. of favourable outcomes-4
Possible outcomes-7

probability(prime no.)=4/7.


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Answer 2

• No. of favourable outcomes = 4

• Possible outcomes = 7

• probability(prime no.) =4/7.