Question

You are randomly drawing marbles from a bag containing both blue and green marbles, without replacing the marbles between draws. If B = blue and G = green, which of the following represents the probability of drawing a blue marble on the first draw and a green marble on the second?
A. P(B) • P(G)
B. P(B and G)
C. P(G after B)
D. P(B, then G)

You are randomly drawing marbles from a bag containing 4 blue and 2 green marbles, replacing the marbles between draws. Which of the following will give the probability of drawing a blue marble on both your first and second draws?
A. 1 over 4 • 1 over 4
B. 4 over 6 • 4 over 6
C. 1 over 4 • 1 over 3
D. 4 over 6 • 3 over 6

Answer 1

The answer is A to the first one and D to the second one