Home

Ask Questions

Math Tutorial

Math Formulas

Chem Tutorial

Biology Tutorial

Answers

Examination Tips

Free Downloads

Quiz

Mean,Median,Mode and Range

• Basic definitions and examples

• More general definitions and examples

• Mean,median,mode and range for an Inclusive Series

Mean
To find the mean of a group of numbers we find their average

example: A group of numbers 1,3,8,6,8

mean = (1+3+6+8+8)/5 = 4.8

Median
To find the median of a group of numbers we arrange the numbers in increasing order and look for the number in the middle.

example: A group of numbers 1,3,8,6,8

re-arrange: 1,3,6,8,8

6 being in the middle is the median.

Mode
To find the mode we look for the number which appears for the most number of times in a group of numbers.

example: A group of numbers 1,3,8,6,8

8 is the number which appears twice, which is more than the other numbers in the list hence it is the mode.

Range
To find the range we find the difference between the largest number and the smallest number in the group.

example: A group of numbers 1,3,8,6,8

8 is the largest and 1 the smallest number

hence range is 8 - 1 = 7