A probability distribution of the claim sizes for an auto insurance policy appears in the following table. Claims 1 2 3 4 5 6 Probability 0.05 0.1 0.25 0.25 0.3 0.05 Find the percentage of claims within one standard deviation of the mean. 90 X % An urn contains 15 red, 25 white and 36 blue marbles. A child selects two marbles at random and without replacement from the urn. Find the probability that the colors of the selected marbles are different. x 3