statistics

A bag contains red and blue marbles. Two marbles are drawn without
replacement. The probability of selecting a red marble and then a blue marble is 0
.28.
The probability of selecting a red marble on the first draw is 0.5. What is the probability
of selecting a blue marble on the second draw, given that the first marble drawn was
red?

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  1. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

    .5 * B = .28

    Solve for B.

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