Question

Find the average number of 15,17,19,21 and 31

Answer 1

Answer:

20.6 is the answer.

Step-by-step explanation:

$average = \frac{sum \: of \: the \: values}{number \: of \: values}$

$= \frac{15 + 17 + 19 + 21 + 31}{5 } \\ = \frac{103}{5} \\ = 20.6$

: ) Hope it helps