A plumber

A plumber has the following lengths of PVC: 3.3 ft, 9.77 ft, 8.41 ft, 9.61 ft, 8 ft. What is his average length of PVC

Correct answer:

a =  7.818 ft

Step-by-step explanation:

$a={\displaystyle \frac{3.3+9.77+8.41+9.61+8}{5}}={\displaystyle \frac{3909}{500}}\text{ ft}=7.818\text{ ft}$

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