# How to Find the Mean

Finding the mean, also known as the average, is a fundamental concept in statistics. It’s a measure of central tendency and is calculated by summing up all the values in a dataset and then dividing the sum by the total number of values. Here’s how to find the mean:

• Gather the dataset for which you want to find the mean. This could be a set of numbers, scores, measurements, etc.

Step 2: Add Up All the Values

• Add together all the individual values in the dataset. This is the sum of the dataset.

Step 3: Count the Number of Values

• Count how many values there are in the dataset. This is the total number of observations.

Step 4: Divide the Sum by the Number of Values

• Divide the sum you calculated in Step 2 by the total number of values you counted in Step 3.����=������������������������������Mean=TotalNumberofValuesSumofValues

Example:

Suppose you have a dataset of exam scores: 80, 85, 90, 75, and 95.

1. Sum of Values:
• 80+85+90+75+95=42580+85+90+75+95=425
2. Total Number of Values:
• There are 5 scores in the dataset.
3. Calculate the Mean:
• ����=4255=85Mean=5425​=85

So, the mean of the exam scores is 85.