A NUMBER IS SELECTED FROM NUMBERS 1 TO 25. THE PROBABILITY THAT IT IS PRIME IS:
- 2/3
- 1/6
- 1/3
- 5/6
THE ANSWER HAS BEEN GIVEN OPTION 3
BUT ACCORDING TO ME IT SHOULD BE 2/5
PLEASE TELL ME WHICH ONE IS CORRECT?
The possible prime numbers are:
2,3,5,7,11,13,17,19 and 23.
Number of possible outcomes = 9
... P (prime number) = 9/25
2,3,5,7,11,13,17,19 and 23.
Number of possible outcomes = 9
... P (prime number) = 9/25