Question: USE R!! PLEASE SHOW CODE AND OUTPUT. USE R! USE R!! PLEASE SHOW CODE AND OUTPUT. USE R! 3. Suppose the grading policy is: Homework

USE R!! PLEASE SHOW CODE AND OUTPUT. USE R!

USE R!! PLEASE SHOW CODE AND OUTPUT. USE R! USE R!! PLEASE

USE R!! PLEASE SHOW CODE AND OUTPUT. USE R!

3. Suppose the grading policy is: Homework 20%, Exam 1, 30%, Final 50%. Create a new variable, TotalP, the total percentage, which is obtained by TotalP = (Hwl+Hw2+Hw3+Hw4)*20/40+Exam1*0.3+Final*0.5. Produce this new variable. Have a check for the data file, now, you should have this new variable. 4. Suppose our grading policy is: >= 90, A, 80-89, B, 70-79, C, 60-69, D, = 90, A, 80-89, B, 70-79, C, 60-69, D,

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