Question

a ball is selected at random from a bag containing 3 red balls,4 black balls and 5 green balls. the first ball is replaced and a second is selected.find the probability of obtaining: a) two red balls b)two green balls

Answer 1

Hey Mate..❤❤

Here's your answer......

(a) 2/3 = 0.66

(b) 2/5 = 0.4

HOPE IT works

Answer 2

Answer:

a) 1/16   b) 25/144

Step-by-step explanation:

a) two red balls

for one red ball =3/12

                          =1/4

for two red balls =(1/4)x(1/4)

                             = 1/16

b) for two green balls

for one green ball =5/12

for two = (5/12) x (5/12)

             = 25/144

I hope this helps!