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Find the Mean 21 , 24 , 26 , 18 , 26 , 2 , 24

$21$ ,

$24$ ,

$26$ ,

$18$ ,

$26$ ,

$2$ ,

$24$

Step 1

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

$\frac{21 + 24 + 26 + 18 + 26 + 2 + 24}{7}$

Step 2

Simplify the numerator.

Add

$21$ and

$24$ .

$\frac{45 + 26 + 18 + 26 + 2 + 24}{7}$

Add

$45$ and

$26$ .

$\frac{71 + 18 + 26 + 2 + 24}{7}$

Add

$71$ and

$18$ .

$\frac{89 + 26 + 2 + 24}{7}$

Add

$89$ and

$26$ .

$\frac{115 + 2 + 24}{7}$

Add

$115$ and

$2$ .

$\frac{117 + 24}{7}$

Add

$117$ and

$24$ .

$\frac{141}{7}$

Step 3

Divide.

$20.14285714$

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.

$20.1$

Find the Mean 21 , 24 , 26 , 18 , 26 , 2 , 24

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