# How to use a probability calculator for 3 events on a daily basis?

When it comes to calculations, there are some that we do every day without even thinking about it. For example, when you’re driving to work and trying to figure out if you have enough time to make that yellow light, you’re using probability! Today, we will show you how to use a conditional probability calculator 3 events on a daily basis.

**What is probability?**

Probability is the chance that something will happen. It’s a number between 0 and 100% (0% means it definitely won’t happen, 100% means it will definitely happen).

You can calculate the probability of an event happening by using the following formula:

Event Probability = (Number of ways it can happen / Total number of outcomes) * 100%

For example, if you want to figure out the probability of flipping a coin and getting heads, there are 2 possible outcomes: heads or tails. As there is an equal chance of each outcome occurring, the probability of flipping a coin and getting heads = (1 / 2) * 100% = 50%.

What happens if you want to know the probability of three mutually exclusive events all occurring? This is referred to as the joint probability, and it is calculated by multiplying together the individual probabilities, in decimal format (percentage format divided by 100%), of each event occurring.

For example, if the probability of event A happening is 50%, the probability of event B happening is 30%, and the probability of event C happening is 20%, the joint probability of all three events happening is 0.50 x 0.30 x 0.20 = 0.03 or 3%.

You might also want to know the probabilities of two out of the three events occurring (union), just one of them occurring, or none at all. This working out can be tricky, which is why you may want to use special calculators like ours to figure out the probability of several events all occurring. You can also see the chances of events occurring in other formats, such as probability calculator 3 events fractions.

**How can I use this information in my daily life?**

Now that you know how to calculate the probabilities of three events happening, let’s look at some examples of how you can use this information in your everyday life. Of course, those are just some ideas you can __leverage in a solid probability calculator 3 events__.

- If you’re trying to decide whether or not to go out in the rain, you might want to calculate the probability of three events happening: getting wet, getting cold, and your umbrella breaking.
- If you’re trying to decide whether or not to buy a lottery ticket, you can calculate the probability of three events happening: winning the lottery, losing the lottery, and the ticket being a Scratch-off.
- If you’re trying to decide whether or not to eat that last piece of cake, you can calculate the probability of three events happening: getting fat, being sick, and the cake being delicious.

**Why do you need a probability 3 events calculator, then?**

Joint probabilities can be tricky to calculate, especially when you have (at least) three separate events to consider. There are, however, online probability calculator 3 events with steps that can do the work for you. Just enter in the probability of each event and the number of events, then the probability of 3 dependent events calculator will work out the different probabilities of combinations of events occurring for you.

A compound probability calculator 3 events is therefore a great tool to have when you are trying to determine the likelihood of something happening. Of course, it’s not like you’re going to use a calculator like this every day. But next time you’re trying to figure out the probability of something happening, you’ll be glad to have it available. And if you need to use one for multiple calculations on the spot, this kind of calculator will definitely save you some time!