Statistics Calculator
Calculate key statistics for any dataset including mean (average), median (middle value), mode (most frequent), range, variance, and standard deviation. Enter your numbers separated by commas, spaces, or new lines.
How We Calculate This
Mean = sum of values / count. Median = middle value of sorted data. Mode = most frequent value. Standard Deviation = sqrt(sum of squared differences from mean / count). Uses population standard deviation.
Frequently Asked Questions
What is the difference between mean and median?
The mean is the sum of all values divided by the count. The median is the middle value when data is sorted. Median is better for skewed data as it is not affected by extreme values.
What is standard deviation?
Standard deviation measures how spread out the data is from the mean. A low standard deviation means values are close to the average, while high standard deviation means values are more spread out.
When would a dataset have no mode?
A dataset has no mode when all values appear the same number of times (each value is unique). Some datasets can have multiple modes if several values tie for most frequent.
What is variance?
Variance is the average of squared differences from the mean. It measures data spread. Standard deviation is the square root of variance, making it easier to interpret in original units.
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