Understanding Weighted Averages and Final Exam Impact

This video tutorial demonstrates how to use a T84 graphing calculator to determine the impact of a final exam score on a course grade based on weighted averages. It explains the components of the course grade, sets up an equation, and uses the calculator to find the necessary final exam score to achieve an 'A' grade. The tutorial concludes with an analysis of the results.

What tool is being used to determine the impact of a final exam score on a course grade?

• A T84 graphing calculator

• A scientific calculator

• A statistical software

• A spreadsheet software

What percentage of the course grade is the homework category weighted?

• 30%

• 40%

• 10%

• 20%

What is the weight of the final exam in the course grade calculation?

• 40%

• 10%

• 20%

• 30%

What is the minimum course percentage required to achieve an 'A' grade?

• 91.5%

• 85.5%

• 87.5%

• 89.5%

Which component of the course grade is represented by 'X' in the equation?

• Test average

• Project percentage

• Final exam percentage

• Homework percentage

What is the first step in using the graphing calculator to solve the equation?

• Set the table start value

• Calculate the test average

• Enter the final exam score

• Press 'Y equals' and clear old equations

At what final exam score does the course percentage reach the lowest 'B' grade?

• 89%

• 79%

• 69%

• 59%

What final exam score is needed to achieve an 'A' in the course?

• 89%

• 91%

• 93%

• 92%

What is the conclusion regarding the final exam score needed for an 'A' grade?

• Score at least 95%

• Score at least 93%

• Score at least 90%

• Score at least 85%

What is the overall message to the student at the end of the tutorial?

• You should aim for a 'B' grade.

• You should focus more on homework.

• You must score at least 93% on the final to get an 'A'.

• You will likely need to retake the course.