To find the expected value of a random event, you can follow these easy steps:
Identify Outcomes: First, list all the possible results of the event.
For example, if you're rolling a die, the outcomes are 1, 2, 3, 4, 5, and 6.
Assign Probabilities: Next, figure out the chances of each outcome happening.
If the die is fair, then each number has a chance of .
Calculate Values: Now, multiply each outcome by its chance.
For our die example, it looks like this:
Sum Up: Finally, add all these results together to find the expected value.
So, it would be: .
And that’s how you find the expected value!
To find the expected value of a random event, you can follow these easy steps:
Identify Outcomes: First, list all the possible results of the event.
For example, if you're rolling a die, the outcomes are 1, 2, 3, 4, 5, and 6.
Assign Probabilities: Next, figure out the chances of each outcome happening.
If the die is fair, then each number has a chance of .
Calculate Values: Now, multiply each outcome by its chance.
For our die example, it looks like this:
Sum Up: Finally, add all these results together to find the expected value.
So, it would be: .
And that’s how you find the expected value!