A spinner numbered 1 through 5 is spun 3 times. what is the probability of spinning a number less than 3 each time? are these events dependent or independent?

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11-08-2017
Mathematics

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A spinner numbered 1 through 5 is spun 3 times. what is the probability of spinning a number less than 3 each time? are these events dependent or independent?

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Аноним Аноним · Answer 1 · 2017-08-11T14:13:51+02:00

Аноним Аноним

11-08-2017

Prob(spinning a number < 3on 1 spin) = Prob( spinning 1 or 2) = 2/5

Prob( spinning <3 3 times) = 2/5 * 2/5 * 2/5 = 8/125

These events are independent so we multiply the probabilities.

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