Question

There are 10 marbles in an urn of which 4 are black and 6 are red. What is the
probability that you pick out 2 marbles at random and both the marbles are
black?​

Answer 1

Step-by-step explanation:

A jar contains 10 red marbles, 4 white marbles, and 2 blue marbles. Two are drawn in sequence, not replacing after each draw. ... On the first, you have 10/16 chances to draw a red.