A number from the list {2, 4, 5, 7, 9, 10, 12, 15, 18, 20} is to be picked at random. What is the probability of getting an even number? Write your answer in the simplest form of fraction
In the list {2, 4, 5, 7, 9, 10, 12, 15, 18, 20}, there are 6 even numbers (2, 4, 10, 12, 18, 20) out of a total of 10 numbers.
Therefore, the probability of getting an even number at random is 6/10, which simplifies to 3/5.
So, the probability of getting an even number is 3/5.