A jar contains 20 blue marbles and 80 red marbles, which is true when the children take turns randomly selecting a marble from the jar, if a blue marble is chosen, he child wins a prize, after each turn, the marble is replaced, Casey has drawn six red marbles. Which is true? The probability of Casey selecting a blue marble on her next turn is the same as it was on the last turn because selections are independent of each other.
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