Basic Math Examples

$84$ ,

$97$ ,

$77$ ,

$31$ ,

$84$ ,

$63$ ,

$58$ ,

$72$ ,

$47$ ,

$84$ ,

$69$ ,

$94$ ,

$43$ ,

$68$

Step 1

The mean of a set of numbers is the sum divided by the number of terms.

$\frac{84 + 97 + 77 + 31 + 84 + 63 + 58 + 72 + 47 + 84 + 69 + 94 + 43 + 68}{14}$

Step 2

Simplify the numerator.

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Step 2.1

Add

$84$ and

$97$ .

$\frac{181 + 77 + 31 + 84 + 63 + 58 + 72 + 47 + 84 + 69 + 94 + 43 + 68}{14}$

Step 2.2

Add

$181$ and

$77$ .

$\frac{258 + 31 + 84 + 63 + 58 + 72 + 47 + 84 + 69 + 94 + 43 + 68}{14}$

Step 2.3

Add

$258$ and

$31$ .

$\frac{289 + 84 + 63 + 58 + 72 + 47 + 84 + 69 + 94 + 43 + 68}{14}$

Step 2.4

Add

$289$ and

$84$ .

$\frac{373 + 63 + 58 + 72 + 47 + 84 + 69 + 94 + 43 + 68}{14}$

Step 2.5

Add

$373$ and

$63$ .

$\frac{436 + 58 + 72 + 47 + 84 + 69 + 94 + 43 + 68}{14}$

Step 2.6

Add

$436$ and

$58$ .

$\frac{494 + 72 + 47 + 84 + 69 + 94 + 43 + 68}{14}$

Step 2.7

Add

$494$ and

$72$ .

$\frac{566 + 47 + 84 + 69 + 94 + 43 + 68}{14}$

Step 2.8

Add

$566$ and

$47$ .

$\frac{613 + 84 + 69 + 94 + 43 + 68}{14}$

Step 2.9

Add

$613$ and

$84$ .

$\frac{697 + 69 + 94 + 43 + 68}{14}$

Step 2.10

Add

$697$ and

$69$ .

$\frac{766 + 94 + 43 + 68}{14}$

Step 2.11

Add

$766$ and

$94$ .

$\frac{860 + 43 + 68}{14}$

Step 2.12

Add

$860$ and

$43$ .

$\frac{903 + 68}{14}$

Step 2.13

Add

$903$ and

$68$ .

$\frac{971}{14}$

Step 3

Divide.

$69.35714285$

Step 4

The mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.

$69.4$