Basic Math Examples

88

$88$ ,

85

$85$ ,

89

$89$ ,

92

$92$ ,

90

$90$ ,

95

$95$

Step 1

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

\frac{88 + 85 + 89 + 92 + 90 + 95}{6}

$\frac{88 + 85 + 89 + 92 + 90 + 95}{6}$

Step 2

Simplify the numerator.

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Step 2.1

Add

88

$88$ and

85

$85$ .

\frac{173 + 89 + 92 + 90 + 95}{6}

$\frac{173 + 89 + 92 + 90 + 95}{6}$

Step 2.2

Add

173

$173$ and

89

$89$ .

\frac{262 + 92 + 90 + 95}{6}

$\frac{262 + 92 + 90 + 95}{6}$

Step 2.3

Add

262

$262$ and

92

$92$ .

\frac{354 + 90 + 95}{6}

$\frac{354 + 90 + 95}{6}$

Step 2.4

Add

354

$354$ and

90

$90$ .

\frac{444 + 95}{6}

$\frac{444 + 95}{6}$

Step 2.5

Add

444

$444$ and

95

$95$ .

\frac{539}{6}

$\frac{539}{6}$

\frac{539}{6}

$\frac{539}{6}$

Step 3

Divide.

89.8\overline{3}

$89.8\overline{3}$

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.

89.8

$89.8$