# Probability Using the Mean and Standard Deviation

## Use our simple online Probability Using the Mean calculator to find the solution with step-by-step explanation.

Share Mean Calculator

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## How to use the Probability Calculator

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### Step 1

Enter your set of numbers in the input field. Numbers must be separated by commas.

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### Step 2

Press Enter on the keyboard or on the arrow to the right of the input field.

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### Step 3

In the pop-up window, select “Probability Using the Mean and Standard Deviation”. You can also use the search.

## What is Probability in Math

Probability — the degree (relative measure, quantitative assessment) of the possibility of an event occurring. When the reasons for a possible event to actually occur outweigh the opposite reasons, the event is called probable, otherwise unlikely or improbable.

The preponderance of positive grounds over negative ones, and Vice versa, can be to various degrees, so that the probability (and improbability) is greater or less. Therefore, probability is often evaluated at a qualitative level, especially in cases where a more or less accurate quantitative assessment is impossible or extremely difficult. Various gradations of "levels" of probability are possible.