Question

A box contains cards containing numbers 3 to 50. A card is drawn at random, the probability that the drawn card is a prime no. less than 13 is​

Answer 1

Answer: prime no. less than 13 are

,3 ,5 ,7,11

probability of getting the card no. less than 13 is

4/ 47

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Answer 2

Explanation:

Let E be the event of getting a prime number in the event of drawing a card numbered 3,5,7,9.....,37 from the box

Prime numbers from 3 to 37=3,5,7,11,13,17,19,23,29,31,37

No. of favorable outcomes=11

Total no. of possible outcomes =18

We know that, Probability P(E) =

(Total no.of possible outcomes)

(No.of favorable outcomes)

= 11/18

Therefore, the probability that the drawn ticket bears a prime number is =

11/18