Find the Mean 73 , 68 , 75 , 82 , 69 , 85 , 75 , 78 , 75 , 88 , 78

$73$ ,

$68$ ,

$75$ ,

$82$ ,

$69$ ,

$85$ ,

$75$ ,

$78$ ,

$75$ ,

$88$ ,

$78$

Step 1

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

$\frac{73 + 68 + 75 + 82 + 69 + 85 + 75 + 78 + 75 + 88 + 78}{11}$

Step 2

Simplify the numerator.

Add

$73$ and

$68$ .

$\frac{141 + 75 + 82 + 69 + 85 + 75 + 78 + 75 + 88 + 78}{11}$

Add

$141$ and

$75$ .

$\frac{216 + 82 + 69 + 85 + 75 + 78 + 75 + 88 + 78}{11}$

Add

$216$ and

$82$ .

$\frac{298 + 69 + 85 + 75 + 78 + 75 + 88 + 78}{11}$

Add

$298$ and

$69$ .

$\frac{367 + 85 + 75 + 78 + 75 + 88 + 78}{11}$

Add

$367$ and

$85$ .

$\frac{452 + 75 + 78 + 75 + 88 + 78}{11}$

Add

$452$ and

$75$ .

$\frac{527 + 78 + 75 + 88 + 78}{11}$

Add

$527$ and

$78$ .

$\frac{605 + 75 + 88 + 78}{11}$

Add

$605$ and

$75$ .

$\frac{680 + 88 + 78}{11}$

Add

$680$ and

$88$ .

$\frac{768 + 78}{11}$

Add

$768$ and

$78$ .

$\frac{846}{11}$

Step 3

Divide.

$76.\overline{90}$

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.

$76.9$

Find the Mean 73 , 68 , 75 , 82 , 69 , 85 , 75 , 78 , 75 , 88 , 78

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