Find the Mean 0.03999 , 0.3999 , 0.0399 , 4/10

$0.03999$ , $0.3999$ , $0.0399$ , $\frac{4}{10}$

Step 1

Cancel the common factor of $4$ and $10$ .

Factor $2$ out of $4$ .

$0.03999, 0.3999, 0.0399, \frac{2 (2)}{10}$

Cancel the common factors.

Factor $2$ out of $10$ .

$0.03999, 0.3999, 0.0399, \frac{2 \cdot 2}{2 \cdot 5}$

Cancel the common factor.

$0.03999, 0.3999, 0.0399, \frac{2 \cdot 2}{2 \cdot 5}$

Rewrite the expression.

$0.03999, 0.3999, 0.0399, \frac{2}{5}$

Step 2

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

$\frac{0.03999 + 0.3999 + 0.0399 + \frac{2}{5}}{4}$

Step 3

Simplify the numerator.

Add $0.03999$ and $0.3999$ .

$\frac{0.43989 + 0.0399 + \frac{2}{5}}{4}$

Add $0.43989$ and $0.0399$ .

$\frac{0.47979 + \frac{2}{5}}{4}$

To write $0.47979$ as a fraction with a common denominator, multiply by $\frac{5}{5}$ .

$\frac{0.47979 \cdot \frac{5}{5} + \frac{2}{5}}{4}$

Combine $0.47979$ and $\frac{5}{5}$ .

$\frac{\frac{0.47979 \cdot 5}{5} + \frac{2}{5}}{4}$

Combine the numerators over the common denominator.

$\frac{\frac{0.47979 \cdot 5 + 2}{5}}{4}$

Rewrite $\frac{0.47979 \cdot 5 + 2}{5}$ in a factored form.

Multiply $0.47979$ by $5$ .

$\frac{\frac{2.39895 + 2}{5}}{4}$

Add $2.39895$ and $2$ .

$\frac{\frac{4.39895}{5}}{4}$

Divide $4.39895$ by $5$ .

$\frac{0.87979}{4}$

Step 4

Divide $0.87979$ by $4$ .

$0.2199475$

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.

$0.2$

Find the Mean 0.03999 , 0.3999 , 0.0399 , 4/10

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