Step-by-step explanation:

Question:

If a number is chosen at random from the numbers 1 to 20 inclusive, what is the probability that:

a) a prime number will be picked?

b) an even number will be picked?

c) a single digit number will be picked

paliwanag po

a) 8/20 = 2/5

b) 10/20 = 1/2

c) 9/20