$1.$ Print out the average for the month of April

$2.$ Adjust all the grades by $2\%($i$.$e$.$ increase$)$

$3.$ Printout the grades for the month of may that are higher than $50\%$

$4.$ Group the failing students i$.$e$.$ the students with average over four month below $50\%1.$ Print out the average for the month of April

$2.$ Adjust all the grades by $2\%($i$.$e$.$ increase$)$

$3.$ Printout the grades for the month of may that are higher than $50\%$

$4.$ Group the failing students i$.$e$.$ the students with average over four month below $50\%$