# Question: Seven balls are randomly withdrawn from an urn that contains

Seven balls are randomly withdrawn from an urn that contains 12 red, 16 blue, and 18 green balls. Find the probability that

(a) 3 red, 2 blue, and 2 green balls are withdrawn;

(b) At least 2 red balls are withdrawn;

(c) All withdrawn balls are the same color;

(d) Either exactly 3 red balls or exactly 3 blue balls are withdrawn.

(a) 3 red, 2 blue, and 2 green balls are withdrawn;

(b) At least 2 red balls are withdrawn;

(c) All withdrawn balls are the same color;

(d) Either exactly 3 red balls or exactly 3 blue balls are withdrawn.

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