Ajar contains 4 green, 5 blue, 1 red, 5 black marbles. two marbles are drawn from the jar at random without replacement. what is the probability both marbles drawn are blue

5/15 because there are 5 blue marbles and 15 marbles all together.

the correct answer is b) histograms can be used to exhibit the shape of distributions. this is because histograms count the frequency of each possible answer, so one is able to see which results are more common and which are less common.