$($a$)$ Write a program to plot a bar chart in python to display the pass percentage of Department of Operational Research for five consecutive years for the given data: $-$

$\backslash$table$[[$Year$,$Pass Percentage$],[2018,98\mathrm{.}50],[2019,70\mathrm{.}25],[2020,55\mathrm{.}20],[2021,90\mathrm{.}50],[2022,96\mathrm{.}58]]$

$(3)$