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3.5 Exercise 11

Avg difficulty 2.5


Calculate the following probabilities using the tree diagram:

c. Because this is a conditional probability, we restrict the sample space to consider only those outcomes that have a blue marble in the first draw. Look at the second level of the tree to see that P(R on 2nd|B on 1st) = 3 10 \frac{3}{10}

OpenStax Statistics, 3.5 Tree and Venn Diagrams, exercise 11

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