Leave all calculations unsupressed. possible effort level is $100,$ and the minimum possible effort level is $0.$

$2.$ Calculate a logical vector GoodEf where true values are set when the values of StudentEffort are greater than the average effort AvgEf.

$3.$ Create a vector Daysofweek starting at $1$ stepping by $1$ to $7.$

$4.$ Use the GoodEf variable to index the DaysofWeek variable and assign the result to GoodEfDays.

$5.$ Use the "not" of GoodEf variable to index the DaysofWeek variable and assign the result to LoWEfDays.

$6.$ Calculate a logical vector BestEf where a true value is set when the values of StudentEffort are equal to the max effort MaxEf.

$7.$ Use the BestEf variable to index the DaysofWeek variable and assign the result to BestEfDay.