# What is the probability that a card selected at random from a standard deck of 52 cards is a number 5 or 6 or 10?

What is the probability that a card selected at random from a standard deck of 52 cards is a number 5 or 6 or 10?
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In a standard deck of 52 cards, there are four 5’s, four 6’s, and four 10’s. By Addition Rule, the probability is:
$\frac{4}{52}+\frac{4}{52}+\frac{4}{52}=\frac{12}{52}=\frac{3}{13}$