SOLUTION: What is the rule for probabilities with a deck of cards? Are there specific rules for getting "At most" 1 diamond or "At least" one king?

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Question 474143: What is the rule for probabilities with a deck of cards? Are there specific rules for getting "At most" 1 diamond or "At least" one king?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
What is the rule for probabilities with a deck of cards? Are there specific rules for getting "At most" 1 diamond or "At least" one king?
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ANY "at least 1" problem makes use of the complement Rule.
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P(at least one success) + P(no successes) = 1
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Therefore:
Rule: P(at one success) = 1 - P(no successes)
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So,
P(at least one king) = 1 - P(no kings)
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But,
P(at most 1 diamond) = P(no diamonds) + P(1 diamond)
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cheers,
stan H.