How do you find the probability of something?

Expert Answers

An illustration of the letter 'A' in a speech bubbles

The probability is the chance that certain event may occur or not occur.

To calculate the probability you need to figure out the possible outcomes and then determine the event's outcomes.

For example:  in a regular die we need to find the probability of getting a (2)

First we need...

Unlock
This Answer Now

Start your 48-hour free trial to unlock this answer and thousands more. Enjoy eNotes ad-free and cancel anytime.

Start your 48-Hour Free Trial

The probability is the chance that certain event may occur or not occur.

To calculate the probability you need to figure out the possible outcomes and then determine the event's outcomes.

For example:  in a regular die we need to find the probability of getting a (2)

First we need to determine what possible outcomes could occur from rolling the die which is: 1, 2, 3, 4, 5, or, 6

The total number of outcomes is 6.

Then the chance or the probability of getting a two is one to six , 1:6   or 1/6.

If we need the probability of getting an even number, first we determine the outcomes which is: 2, 4, 6

Then the chances for the even number to occur is 3 to 6 or 3:6

Then the probability = 3/6 = 1/2

Approved by eNotes Editorial Team