he following table shows the performance of a selection of $100$ fictitious stocks after one year. $($Take S to be the set of all stocks represented in the table.$)$

Companies

Pharmaceutical

$($P$)$ Electronic

$($E$)$ Internet

$($I$)$ Total

Increased $($V$)551525$

Unchanged$($N$)3002050$

Decreased $($D$)551525$

Total $401050100$

Compute

n$($P$\text{'}\backslash$cup N$).$

$110$

Incorrect: Your answer is incorrect.

stocks