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QUESTION
A person puts inside a hat 30 slips of paper with the numbers 1 to 30 printed on each slip. The hat is shaken vigorously and a slip of paper is...
A person puts inside a hat 30 slips of paper with the numbers 1 to 30 printed on each slip. The hat is shaken vigorously and a slip of paper is chosen. What is the probability that the number on the slip is less than 10 or greater than 20?
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