The image above represents Certainty.

To compute for certainty, one essential parameter is needed and this parameter is **Total Number of All Possible Outcomes (N).**

The formula for calculating Certainty:

**P(A)** = ^{x }⁄ _{N} = ^{N }⁄ _{N}

Where;

P(A) = Certainty

N = Total Number of All Possible Outcomes = 2

Let’s solve an example;

Given that the total number of all possible outcomes is 2. Find the Certainty?

This implies that;

N = Total Number of All Possible Outcomes = 2

**P(A)** = ^{x }⁄ _{N} = ^{N }⁄ _{N}

P(A) = ^{2 }⁄ _{2}

P(A) = 1

Therefore, **P(certainty)** is **1.**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the certainty.

To get the answer and workings of the certainty using the **Nickzom Calculator – The Calculator Encyclopedia. **First, you need to obtain the app.

You can get this app via any of these means:

**Web** – https://www.nickzom.org/calculator-plus

To get access to the **professional **version via web, you need to **register** and **subscribe **for** NGN 1,500 **per** annum** to have utter access to all functionalities.

You can also try the **demo **version via https://www.nickzom.org/calculator

**Android (Paid)** – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)** – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)** – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to the **Calculator Map, **then click on **Probability**** **under **Mathematics****.**

Now, Click on **Certainty**** **under **Probability**

The screenshot below displays the page or activity to enter your value, to get the answer for the certainty according to the respective parameter which is the **Total Number of All Possible Outcomes (N).**

Now, enter the value appropriately and accordingly for the parameter as required by the **Total Number of All Possible Outcomes (N)** is **2**.

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia solves for the certainty and presents the formula, workings and steps too.