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Find the Mean 7.7 , 8.3 , 7.5 , 6.7 , 9.0 , 8.1

$7.7$ ,

$8.3$ ,

$7.5$ ,

$6.7$ ,

$9$ ,

$8.1$

Step 1

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

$\frac{7.7 + 8.3 + 7.5 + 6.7 + 9 + 8.1}{6}$

Step 2

Simplify the numerator.

Add

$7.7$ and

$8.3$ .

$\frac{16 + 7.5 + 6.7 + 9 + 8.1}{6}$

Add

$16$ and

$7.5$ .

$\frac{23.5 + 6.7 + 9 + 8.1}{6}$

Add

$23.5$ and

$6.7$ .

$\frac{30.2 + 9 + 8.1}{6}$

Add

$30.2$ and

$9$ .

$\frac{39.2 + 8.1}{6}$

Add

$39.2$ and

$8.1$ .

$\frac{47.3}{6}$

Step 3

Divide

$47.3$ by

$6$ .

$7.88\overline{3}$

Step 4

Divide.

$7.88\overline{3}$

Step 5

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.

$7.88$

Find the Mean 7.7 , 8.3 , 7.5 , 6.7 , 9.0 , 8.1

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