Probability Basicsmedium
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A box contains red marbles and blue marbles. You draw one marble at random. If it is red, you discard it and draw a second marble. If it is blue, you return it to the box and also add more blue marbles to the box before drawing a second marble. What is the probability that the second marble drawn is red?
A box contains red marbles and blue marbles. You draw one marble at random. If it is red, you discard it and draw a second marble. If it is blue, you return it to the box and also add more blue marbles to the box before drawing a second marble. What is the probability that the second marble drawn is red?