Basic Math Examples Data Measurement and Statistics

Find the Mean

$7$ , $11$ , $14$ , $15$ , $17$ , $18$ , $41$ , $44$ , $40$ , $71$ , $74$

Step 1

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

$\frac{7 + 11 + 14 + 15 + 17 + 18 + 41 + 44 + 40 + 71 + 74}{11}$

Step 2

Simplify the numerator.

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Step 2.1

Add $7$ and $11$ .

$\frac{18 + 14 + 15 + 17 + 18 + 41 + 44 + 40 + 71 + 74}{11}$

Step 2.2

Add $18$ and $14$ .

$\frac{32 + 15 + 17 + 18 + 41 + 44 + 40 + 71 + 74}{11}$

Step 2.3

Add $32$ and $15$ .

$\frac{47 + 17 + 18 + 41 + 44 + 40 + 71 + 74}{11}$

Step 2.4

Add $47$ and $17$ .

$\frac{64 + 18 + 41 + 44 + 40 + 71 + 74}{11}$

Step 2.5

Add $64$ and $18$ .

$\frac{82 + 41 + 44 + 40 + 71 + 74}{11}$

Step 2.6

Add $82$ and $41$ .

$\frac{123 + 44 + 40 + 71 + 74}{11}$

Step 2.7

Add $123$ and $44$ .

$\frac{167 + 40 + 71 + 74}{11}$

Step 2.8

Add $167$ and $40$ .

$\frac{207 + 71 + 74}{11}$

Step 2.9

Add $207$ and $71$ .

$\frac{278 + 74}{11}$

Step 2.10

Add $278$ and $74$ .

$\frac{352}{11}$

Step 3

Divide $352$ by $11$ .

$32$

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Find the Mean

Data Measurement and Statistics

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