Question

please solve this problem ? ​

Answer 1

refer the attachment.

Answer 2

Step-by-step explanation:

here sample space is 8

(r1,r2,r3,b1,b2,b3,b4,b5)

1) red = (r1,r2,r3) = 3

the probability of red ball is 3/8

2) not red means black ball

black = ( b1,b2,b3,b4,b5)

the probability of black ball is 5/8