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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.**

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