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.

$51.9$