Lists and Tuples

Complete the following exercise by the due date. Make sure your source code using appropriate

programming style $($e$.$g$.,$ descriptive variable names, indenting, comments, etc.$).$

Exercises

Write a program that enters in a series $($unknown number$)$ of test grades and stores them in a list. Your

program must:

$$ Keep reading grades until a sentinel $($stop value$)$ is entered $($suggest: $-1).$

$$ When the sentinel value is entered, computer the average of the grades.

$$ Sort the grades from lowest to highest and print out the list.

$$ Print the list in reverse order.

$$ Print out the lowest and highest grades

in python