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In this problem, the total number of possibilities is 20, so n = 20.
The set of prime numbers from 1 to 20 = {2, 3, 5, 7, 11, 13, 17, 19}, so f = 8
Probability = f/n = 8/20 = 0.4.
You have a 2 in 5 chance of choosing a Prime number from 1 to 20.
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What is the probability of getting a prime number from 1 to 20?
40%
What is the probability of getting 2 prime nos from 1 to 20?
In the sample space [1,20], there are 8 prime numbers, [2,3,5,7,11,13,17,19]. The probability, then, of randomly choosing a prime number in the sample space [1,20] is (8 in 20), or (2 in 5), or 0.4. The probability of choosing two of them is (8 in 20) times (7 in 19) which is (56 in 1064) or (7 in 133) or about 0.05263.
If you choose a number between 1 and 20 what are the odds of choosing a prime number?
The odds of choosing a prime number in the set [1-20] are 8 out of 20, as there are 8 prime numbers, 2, 3, 5, 7, 11, 13, 17, and 19, in that set.
What is the prime number after 20?
The first prime after 20 is 23.
Is a prime number less than 20?
A prime number can be less than 20, but it is not a requirement that the number has to be under 20 to be considered prime. Here is a list of all the prime numbers under 20: 2, 3, 5, 7, 11, 13, 17, and 19 .
