Question

A box contains cards numbered from 1 to 100 . find the probability of getting a prime .​

Answer 1

$\boxed{\mathbf{Probability=\frac{Favourable\: Outcomes}{Total\: Outcomes}}}$

Prime Number Between 1 and 100.

=2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, and 97.

Total Prime Number=25

Favourable Outcomes=25

Total Number=100

$\boxed{\mathbf{Probability (Prime)=\frac{\cancel{25}}{\cancel{100}}}}$

$\boxed{\mathbf{Probability (Prime)=\frac{1}{4}}}$