Question

solve the following ​

Answer 1

Answer:

12.S={R1,R2,R3,B1,B2,B3,B4,B5}

Step-by-step explanation:

n(s)=8

A= {R1,R2,R3}

n(A)=3

P(A)=n(A)/n(s)

=3/8

B={B1,B2,B3,B4,B5}

n(B)=5

p(B)=n(B)/n(s)

=5/8