Basic Math Examples

49

$49$ ,

$54$ ,

$55$ ,

$52$ ,

$49$ ,

$55$

Step 1

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

$\frac{49 + 49 + 54 + 55 + 52 + 49 + 55}{7}$

Step 2

Simplify the numerator.

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Step 2.1

Add

$49$ and

$49$ .

$\frac{98 + 54 + 55 + 52 + 49 + 55}{7}$

Step 2.2

Add

$98$ and

$54$ .

$\frac{152 + 55 + 52 + 49 + 55}{7}$

Step 2.3

Add

$152$ and

$55$ .

$\frac{207 + 52 + 49 + 55}{7}$

Step 2.4

Add

$207$ and

$52$ .

$\frac{259 + 49 + 55}{7}$

Step 2.5

Add

$259$ and

$49$ .

$\frac{308 + 55}{7}$

Step 2.6

Add

$308$ and

$55$ .

$\frac{363}{7}$

Step 3

Divide.

$51.85714285$

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.

$51.9$