In all likelihood the probability is 0. Some people will choose their date or year of birth, some their house number.
If you have an equal amount of odd and even numbers in a determined sample space, the probability of choosing and odd number is 1/2 (.5).
5 out of 15 or 1/3 1:3
1/3
It is 1/13.
1 / total number of people
The probability is 10/50 = 1/5.
If you have an equal amount of odd and even numbers in a determined sample space, the probability of choosing and odd number is 1/2 (.5).
The probability of choosing a blue marble is 5 in 15 or 1 in 3. The probability of then choosing a green marble is 5 in 14. (One is missing) Multiply the two probabilities and you get 5 in 42.(P = 0.1190... about 12%).
1 in 5
likely.
Since the word "probability" contains only letters, then the probability of choosing a letter from the word "probability" is 1, i.e. it is certain to happen.
1/7
5 out of 15 or 1/3 1:3
1/3
This is the same as the probability of choosing either a red of a blue marble. There are 5+4 out of 15 ways of doing this. The probability is therefore 9/15 = 3/5.
It is 1/13.
1 / total number of people