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Find the Mean 74 , 81 , 77 , 88

$74$ ,

$81$ ,

$77$ ,

$88$

Step 1

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

$\frac{74 + 81 + 77 + 88}{4}$

Step 2

Simplify the numerator.

Add

$74$ and

$81$ .

$\frac{155 + 77 + 88}{4}$

Add

$155$ and

$77$ .

$\frac{232 + 88}{4}$

Add

$232$ and

$88$ .

$\frac{320}{4}$

$\frac{320}{4}$

Step 3

Divide

$320$ by

$4$ .

$80$

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