Question

You randomly draw a marble from a bag of marbles that contains 3 blue marbles, 4 green marbles, and 5 red marbles.

Answer 1

Total no of possible outcomes= 3+4+5= 12

BLUE MARBLES = FAVORABLE OUTCOMES = 3 SO

3/12= 1/4

GREEN MARBLES= FAVORABLE OUTCOME = 4

SO , 4/12= 1/3

RED MARBLES = FAVORABLE OUTCOMES = 5

SO

5/12

HENCE

BLUE= 1/4

GREEN = 1/3

RED = 5/12