Question 411150


no. of ways to select 3 senators from total 100 = 100C3 = 161700  i.e n(S)


no. of ways to select 1 senators from each party = 50C1 * 49C1 * 1C1 = 2450
 i.e n(A)


probability that one senator from each party  P(A) = n(A)/n(S) 

=   2450 /161700 

=0.0151515..