Buy $0$ Unit

Buy $1$ Unit

Buy $2$ Units

Buy $3$ Units

Probability

$\backslash$table$[[$S$1,$S$2,$S$3,$S$4,$S$5],[0,0,0,0,0],[-7,70,88,6,-14],[-27,69,33,51,34],[62,33,34,-1,84],[0\mathrm{.}2,0\mathrm{.}4,0\mathrm{.}1,0\mathrm{.}1,0\mathrm{.}2]]$

Question: What is the expected monetary v$$lue $($EMV$)$ if we choose to buy $3$ units?