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3 years ago

Will give brainliest if you can answer probability question.

Mathematics

1 answer:

DanielleElmas [232]3 years ago

5 0

Answer:

4a) P (Y and Y) = 1/9

4b) P (Y or Y) = 2/3

4c) P (B and Y) = 1/18

Step-by-step explanation:

4a) P (Y and Y) = 2/6 x 2/6

4b) P (Y or Y) = 1/3 + 1/3

4c) P (B and Y) = 1/6 x 1/3

'and' requires multiplying probabilities

'or' requires adding probabilities

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3 years ago

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3 years ago

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asambeis [7]

Answer:

The third score must be larger than or equal to 72, and smaller than or equal 87

Step-by-step explanation:

Let's name "x" the third quiz score for which we need to find the values to get the desired average.

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Therefore to obtained the requested condition for the average, the third score must be larger than or equal to 72, and smaller than or equal 87:

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