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There are eight prime numbers between 1 and 20.
2, 3, 5, 7, 11, 13, 17, 19

If you randomly choose in number then you have an 8 in 20 chance of selecting a prime.

The probability is selecting a Prime number is 8/20 or 0.4

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15y ago

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Q: What is the probability of selecting a prime number from 1 to 20?
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