Mean Math Example 1

Follow the full solution, then compare it with the other examples linked below.

Example 1

easy
Find the arithmetic mean of the data set: {4,8,15,16,23}\{4, 8, 15, 16, 23\}.

Solution

  1. 1
    Add all values: 4+8+15+16+23=664 + 8 + 15 + 16 + 23 = 66.
  2. 2
    Count the number of values: n=5n = 5.
  3. 3
    Divide the sum by nn: xห‰=665=13.2\bar{x} = \frac{66}{5} = 13.2.

Answer

xห‰=13.2\bar{x} = 13.2
The arithmetic mean is the sum of all values divided by the number of values. It represents the central tendency of a data set and is sensitive to extreme values (outliers).

About Mean

The arithmetic mean (average) of a data set is the sum of all values divided by the number of values.

Learn more about Mean โ†’

More Mean Examples

Example 2 medium

A student scored [formula], and [formula] on five tests. What score does she need on the sixth test

Example 3 easy

Find the mean of [formula].

Example 4 medium

Five quiz scores have a mean of [formula]. Four of the scores are [formula], [formula], [formula], a

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