Question 1

What is the mean?

Accepted Answer

The mean (average) is calculated by summing all values and dividing by the count. For example, the mean of 10, 20, 30 is (10+20+30)/3 = 20. It's the most common measure of central tendency.

Question 2

What is the median?

Accepted Answer

The median is the middle value when numbers are sorted. For an odd count, it's the middle number. For an even count, it's the average of the two middle numbers. The median is less affected by outliers than the mean.

Question 3

What is the mode?

Accepted Answer

The mode is the value that appears most frequently. A dataset can have one mode, multiple modes, or no mode if all values appear equally. For example, in {1, 2, 2, 3}, the mode is 2.

Question 4

When should I use mean vs median?

Accepted Answer

Use the mean for symmetric distributions without outliers. Use the median for skewed data or when outliers are present (like income data). The median better represents the 'typical' value in such cases.

Question 5

How do I enter numbers?

Accepted Answer

Enter numbers separated by commas or spaces. For example: 10, 20, 30, 40, 50 or 10 20 30 40 50. The calculator will parse all numbers and calculate mean, median, mode, sum, and count.

Average Calculator

Types of Averages

Mean

Median

Mode

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