Mean Calculator
Calculate the arithmetic mean of a data set with detailed steps.
Mean Calculator
Calculate the arithmetic mean of a data set with detailed steps.
Real-World Examples
Class grades
Find the mean of 88, 92, 79, 85, 96.
88
Daily sales
Mean of $240, $310, $285, $350, $290, $415.
$315
Heights
Mean height of 160, 165, 170, 175, 180 cm.
170 cm
Common Mistakes to Avoid
Including text labels in the sum
Fix: Only numeric values should be summed. Labels or units must be stripped before calculating the mean.
Forgetting to divide by n
Fix: The mean requires dividing the total sum by the number of values. The sum alone is not the mean.
Using the mean for skewed data
Fix: The mean is sensitive to outliers. For heavily skewed data, the median may be a better measure of central tendency.