Problem # $1$ Inventory Analysis

A demand that follows the following discrete distribution is used to analyze the service level for JNC Company. If the company carries safety stock equal to $3$ items, find its Service Level.

$\backslash$table$[[$D$,1,2,3,4,5,6,7,8,9],[$Probability$,\mathrm{.}03,\mathrm{.}07,\mathrm{.}10,\mathrm{.}15,\mathrm{.}30,\mathrm{.}15,\mathrm{.}10,\mathrm{.}07,\mathrm{.}03]]$