A basket contain 4 red, 5 blue and 3 green marbles. If 3 marbles are picked at random. What is the probability that either all are green or all are red.
Answer & explanation
Correct answer: option 1
A basket contain 4 red, 5 blue and 3 green marbles. If 3 marbles are picked at random. What is the probability that either all are green or all are red.
Correct answer: option 1