Posted by Anonymous on Thursday, March 1, 2012 at 11:14pm.
A number is selected from 1 to 27.fing the probability that is a prime number?

probability  MathMate, Thursday, March 1, 2012 at 11:18pm
Hint:
If the choice is limited to integers, the probability is the number of primes between 1 and 27 (note that 1 is not a prime), divided by 27.