Wiki User
∙ 12y agoThe probability is 11/21.
Wiki User
∙ 12y agoThe probability, in a single random selection, is 1/20 or 0.05
A 1 out of 5 chance, or 20%
20 out of 52.
If one card is picked at random from a normal deck of cards, the probability is 20/52 or 5/13.
The probability, in one draw, is 6/20 or 30%
The probability of picking a distinct set of 3 numbers from 20 is1/[20!/(3!)(17!)]= 1/1140The probability of only picking 3 from 20 is1/20
The probability is 8/20.
The probability, in a single random selection, is 1/20 or 0.05
A 1 out of 5 chance, or 20%
Since there are 10 odd numbers (1, 3, 5, 7, 9, 11, 13, 15, 17, 19) in the 20 numbers (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20), the probability of picking an odd number in a random sample is 10 in 20, or 1 in 2, or 0.5.
The probability of picking a 15 or a 16 from the random set [1-20] is 2 in 20, or 1 in 10, or 0.1.
The probability is 1 over 20.
There are 8 out of 20 numbers that are prime, so 8/20, or 2/5.
21
1/400
There are 20 numbers from 20 through 39, and 4 of them are prime (23, 29, 31, 37), the probability is 4 in 20 or 0.20.
There are 11 numbers from 10 to 20 if we include 10 and 20. Of those, only 16 is a perfect square. So the probability if 1/11 or .09 repeating.