Question: 1. Three marbles are selected from a bag with 5 blue and 7 green marbles. a. How many different selections are possible? b. How many

1. Three marbles are selected from a bag with 5 blue and 7 green marbles.

a. How many different selections are possible?

b. How many selections have exactly one blue marble?

c. How many selections have at least one blue marble?

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