Assume that two marbles are drawn without replacement from a box with 1 blue, 3 white, 2 green, and 2 red marbles. Find the probability of the indicated result.
-Th e second marble is red, given that the first marble is white.
A) $\frac{3}{28}$
B) $\frac{1}{4}$
C) $\frac{2}{7}$
D) $\frac{3}{32}$

Question

Quizplus · Accepted Answer

There are 8 marbles in total. If the first marble is white, there are 7 marbles left, including 2 red ones. The probability of drawing a red marble second is $\frac{2}{7}$.

Assume That Two Marbles Are Drawn Without Replacement from a Box