Asked by Roy

natalie has a bag that contains eight marbles. she draws out a marble, record its color, and puts it back. if natalie repeats this eight times and does not record any red marbles, can she concludes that there are not any red marbles in the bag? Explain
Answered by PsyDAG
How does she know that she wasn't picking the same marble each time?
Answered by A
32
Answered by moreira
A container has 3 blue pens, 4 red pens and 6 yellow pens. In how many ways can you get 4 pens if you need to get at least 1 red pen?
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