The probability that both are red in color is 1/7
Probability is the likelihood or chance that an event will occur.
Probability = Expected outcome/Toal outcome
Given that there are 6 red marbles, 5 green marbles, and 4 yellow marbles in a bag, the total number of marbles will be 6 + 5 + 4 = 15
If Joe picks 2 marbles one after the other without replacement, the probability that both are red in color will be:
Pr(both red) = 6/15 * 5/14
Pr(both red) = 30/210
Pr(both red) = 1/7
Hence the probability that both are red in color is 1/7
Learn more on probability here: https://brainly.com/question/24756209