Question

1.

Andrew has a box filled with baseball caps. He has 3 blue, 1 green, and 2 black caps.
He randomly chooses one cap from the box for himself. Then he picks a second cap
out of the box, also randomly, for his little brother to wear.
What is the probability that Andrew picked a black cap followed by a green cap?
A. 1/18
B. 1/15
C. 1/9
D. 8/15

Answer 1

The probability that Andrew picked a black cap followed by a green cap is calculated by multiplying the individual probabilities.

Probability of picking a black cap first = 2/6
Probability of picking a green cap second = 1/5

Multiplying these probabilities: (2/6) * (1/5) = 1/15

So, the correct answer is B. 1/15.