explain the theoretical probability in a better way - Maths - Probability

Question

explain the theoretical probability in a better way

Chetna Khanna · Accepted Answer

A probability calculated by examining outcomes, rather than by experimenting is a theoretical probability. It is the probability when all the outcomes are equally likely.

We can find the theoretical probability of an event using the following ratio:

$P (event) = \frac{Number of favourable outcomes}{Total number of possible outcomes}$

For example, If we toss a fair coin, the probability that a tail will show up is $\frac{1}{2} .$

As there are only 2 possible outcomes : A Head or a tail.

So, the possibility of tossing a tail are 1 out of 2.

So, P (tail) $= \frac{1}{2} .$