Question

a two digit no. is to be formed from 0,1,2,3,4, without repetition. find the probability that the no. formed is a prime no.​

Answer 1

Answer:

sample space =10,12,13,14,20,21,23,24,30,31,32,34,40,41,42,43

n(s)=16

i)let A be the event that the number formed is a prime number

A=13,23,31,41,43

n(A)=5

p(A)=n(A)/n(s)

=5/16