Question

A bag contains 100 coins and each coin is marked from 1 to 100. One coin is picked at random. Find the probability that the number on the coin is not a prime number.​

Answer 1

number of bag contains = 100 coins

probability (1 to 100 ) = favorable outcomes/ total outcomes

= 28 / 100

= 7/ 5 ( answer )

thanku you to all

Answer 2

Answer:

The probability that the number picked is not a prime number is $\frac{3}{4}$

Step-by-step explanation:

Given:

Total numbers = 100

We know that prime numbers = 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97

Total prime numbers = 25

We know that probability = $\frac{FavourableOutcomes}{TotalOutcomes}$

                                          = $\frac{100-25}{100}$

                                          = $\frac{75}{100}$

                                          = $\frac{3}{4}$

Therefore, the probability that the number picked is not a prime number is $\frac{3}{4}$