qtkt qtkt
  • 13-05-2015
  • Mathematics
Answered

Let n be a randomly selected integer from 1 to 20. Find the indicated probability.

n is prime given that it has two digits, what is n?



Answer :

wisewolf wisewolf
  • 13-05-2015
there us 11 two digit numbers between 1 and 20.
4 of them are prime: 11, 13, 17 and 19

so probability is 4/11
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