Question

state the sample space and find the probability of picking a blue ball from a bag containing 5 red balls, 3 blue balls and 7 green balls

Answer 1

red balls =5

blue balls =3

green balls =7

P=no of trials/ no of times the event occurs

total trials =5+3+7=15

red balls =15/5 =3

blue balls=15/3=5

green balls =15/7