Basic Math Examples

28

$28$ ,

41

$41$ ,

28

$28$ ,

57

$57$ ,

45

$45$ ,

48

$48$

Step 1

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

\frac{28 + 41 + 28 + 57 + 45 + 48}{6}

$\frac{28 + 41 + 28 + 57 + 45 + 48}{6}$

Step 2

Simplify the numerator.

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Step 2.1

Add

28

$28$ and

41

$41$ .

\frac{69 + 28 + 57 + 45 + 48}{6}

$\frac{69 + 28 + 57 + 45 + 48}{6}$

Step 2.2

Add

69

$69$ and

28

$28$ .

\frac{97 + 57 + 45 + 48}{6}

$\frac{97 + 57 + 45 + 48}{6}$

Step 2.3

Add

97

$97$ and

57

$57$ .

\frac{154 + 45 + 48}{6}

$\frac{154 + 45 + 48}{6}$

Step 2.4

Add

154

$154$ and

45

$45$ .

\frac{199 + 48}{6}

$\frac{199 + 48}{6}$

Step 2.5

Add

199

$199$ and

48

$48$ .

\frac{247}{6}

$\frac{247}{6}$

\frac{247}{6}

$\frac{247}{6}$

Step 3

Divide.

41.1 ¯ 6

$41.1\overline{6}$

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.

41.2

$41.2$