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1 year ago

9

A bag contains 4 blue marbles and 7 red marbles. Two marbles are randomly drawn without replacement. Find the probability of the

event ""the first marble is red and the second marble is blue""?

1 answer:

Kruka [31]1 year ago

3 0

Answer:

8/11

Step-by-step explanation:

In the given scenario was cannot calculate P(B) directly. As it depends on what happened first, by itself we don’t know what was drawn first. Thus it becomes a conditional probability question:

P( B | A ) ← reads as the probability of “B” happening “given that” “A” has already happened — in this case the probability that the second marble drawn is a blue marble given that the first was a red marble.

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Step-by-step explanation:

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2 years ago

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3 years ago

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2 years ago

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Step-by-step explanation:

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This the answer

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