Question

What is the probability of the no. from 1 to 10 a perfect square , odd no, prime no?

Answer 1

$|\Omega|=10$

a perfect square

$|A|=3\\\\P(A)=\dfrac{3}{10}$

an odd number

$|A|=5\\\\P(A)=\dfrac{5}{10}=\dfrac{1}{2}$

a prime number

$|A|=4\\\\P(A)=\dfrac{4}{10}=\dfrac{2}{5}$