\[\ What\;is\;the\;average\;of\;integers\;from\;17\;to\;55\;? = 36\]
\[\ Average\; of\; Integers = \frac{N1+Nn}{2} \]
\[\ Average\; of\; Integers = \frac{17+55}{2} \]
\[\ Average\; of\; Integers = \frac{72}{2} \]
\[\ Average\; of\; Integers = 36\]