Finite Math Examples

$11$ , $14$ , $14$ , $17$ , $17$ , $41$ , $44$ , $47$ , $71$ , $74$ , $77$

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

$\frac{11 + 14 + 14 + 17 + 17 + 41 + 44 + 47 + 71 + 74 + 77}{11}$

Simplify the numerator.

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Add $11$ and $14$ .

$\frac{25 + 14 + 17 + 17 + 41 + 44 + 47 + 71 + 74 + 77}{11}$

Add $25$ and $14$ .

$\frac{39 + 17 + 17 + 41 + 44 + 47 + 71 + 74 + 77}{11}$

Add $39$ and $17$ .

$\frac{56 + 17 + 41 + 44 + 47 + 71 + 74 + 77}{11}$

Add $56$ and $17$ .

$\frac{73 + 41 + 44 + 47 + 71 + 74 + 77}{11}$

Add $73$ and $41$ .

$\frac{114 + 44 + 47 + 71 + 74 + 77}{11}$

Add $114$ and $44$ .

$\frac{158 + 47 + 71 + 74 + 77}{11}$

Add $158$ and $47$ .

$\frac{205 + 71 + 74 + 77}{11}$

Add $205$ and $71$ .

$\frac{276 + 74 + 77}{11}$

Add $276$ and $74$ .

$\frac{350 + 77}{11}$

Add $350$ and $77$ .

$\frac{427}{11}$

Divide.

$38.\overline{81}$

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.

$38.8$

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