Question

There are 30 tickets numbered from 1 to 30 in the box and a ticket is drawn at random. If A is the event that the number on the ticket is a perfect square, then write the sample space S, n(S), the event A and n(A).

Answer 1

Since there are 30 tickets numbered from 1 to 30.

∴ sample space

S = { 1,2,3,.....30}

n(S) =30

Let A = Event of Square 

             perfect square

∴ A = { 1, 4,9,16,25}

∴ n (A) = 5