Question

when a die is thrown find the probability of an event of getting a non composite number​

Answer 1

A die contain 6 numbers 1,2,3,4,5,6

prime numbers are 2,3,5 - 3 primes

composites are 4,6 - 2 composites

neither prime nor composite is 1

probability of non composite number means prime numbers and 1

prime numbers are 3 and including 1 ..3+1=4

probability is 4/6 ( total numbers are 6 so denominator is 6)

4\6= 2/3

probability is 2/3