Question

4. A ball is drawn at random from a box containing 12 red, 18 white, 19 blue. and 15 orange balls. Find the probability that (i) it is red or blue, and (0) it is white, blue, or orange.​

Answer 1

Answer:

S = 18, 12,19,15

n(S)= 64

1) let A be the event that the ball drawn is red or blue

A = 12, 19

n(A)= 31

P(A)= n(A)/n(S)

= 31/64

the probability that ball drawn is red or blue is 31/64

2) Let B be the probability of ball drawn is white blue or orange

B= 18 ,19,15

n(B)= 52

P(A)= n(B)/n(S)

= 52/64

=13/16

the probability that ball drawn is white blue and orange is 13/16

hope this helps......

DO MARK AS BRAINLIEST