A bag contains 3 red marbles and 4 blue marbles. a marble is taken at random and replaced. Another marble is taken from the bag. Work out the probability that the two marbles taken from the bag are the same color.
<span>Total number of marbles in the bag is 3 + 4 = 7.<span>The problem asks for the probability of (RR) or (BB).</span>It's worthy to note we are replacing the balls after each draw, which means we always have 7 to draw from</span>Since each draw is independent, we take the product of each event for the total event probability.
8/3 cups or 2 2/3 2/3 × 4/1 = 8/3 if u divide 3 into 8 it gives u 2 times with 2 places left the 2 places equal 2/3 2 whole OR 6/3 + 2/3 = 8/3 OR 2 and 2/3
