The answer depends on how refined the theory is. The simplest theory is that birthdays are distributed evenly through the year across the world. If that were the case, the answer is 1/2.
However, anyone who has spent even a short time studying the subject will know that birthdays are not evenly distributed. The month to month variations, plus differences between countries need to be taken into account before a half-way decent theoretical model can be constructed.
There are five letters, and two of them are s's. The theoretical probability of choosing an s would be 2 out of 5.2/5 or 40%
cant answer this question without more information....probability requires a ratio.
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.
Probability of choosing a consonant from math = 3/4
2/11
The probability is 2/11.
1/7
Since every month except May, June, July and August has a R in its name, the odds of someone born in a month whose name contains an R is roughly 2/3. The exact number is closer to 66.32% (242.2425 ÷ 365.2425).
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).
Since there are 2 red tens in a deck of 52 cards, the probability of choosing a red ten is 2 out of 52 = 1 out of 26 = 0,0384615385...
The probability is 10/50 = 1/5.
The probability is 0.