Mathematics, 25.09.2020 02:01, mymyj1705

A bag contains 100 marbles, some red and some purple. Suppose a student, without looking, chooses a marble out of the bag, records the color, and then places that marble back in the bag. The student has recorded 9 red marbles and 11 purple marbles. Using these results, predict the number of red marbles in the bag.

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A bag contains 100 marbles, some red and some purple. Suppose a student, without looking, chooses a...