Understanding Percent Error and Absolute Error

This video tutorial by Mr. Holcomb covers the concept of percent error, starting with an introduction to absolute error. It provides detailed examples of calculating absolute and percent errors using measurements of a computer monitor. The tutorial also includes exercises to practice these calculations, emphasizing the importance of understanding error in various contexts.

What is the absolute error if a student measures a 15-inch monitor as 15 and 2/8 inches?

• 1/2 inch

• 1/4 inch

• 3/8 inch

• 1/8 inch

If a student measures a 15-inch monitor as 14 and 6/8 inches, what is the absolute error?

• 1/2 inch

• 1/8 inch

• 1/4 inch

• 3/4 inch

How is percent error calculated?

• Absolute error divided by approximate value times 100%

• Absolute error divided by exact value times 100%

• Approximate value divided by absolute error times 100%

• Exact value divided by absolute error times 100%

What is the percent error if the absolute error is 1/4 inch and the exact value is 15 inches?

• 1.67%

• 2.33%

• 1.33%

• 2.67%

In a real estate example, if 18 people were expected but 25 attended, what is the percent error?

• 22%

• 28%

• 25%

• 30%

If a student reports a mass of 328 grams instead of the actual 300 grams, what is the percent error?

• 8.67%

• 9.33%

• 10.33%

• 11.67%

What is the percent error if a bowler's score is recorded as 250 but the actual score is 225?

• 9.9%

• 10.5%

• 11.1%

• 12.2%

In the context of percent error, why is it important to compare the error to the exact value?

• To find the exact value

• To understand the significance of the error

• To determine the absolute error

• To calculate the approximate value

What is the most percent error possible if the actual attendance is between 573 and 589?

• 3.0%

• 2.5%

• 3.2%

• 2.8%

Why is it important to consider the context when evaluating percent error?

• To calculate the exact value

• To understand the impact of the error in different situations

• To ensure the error is always minimized

• To find the absolute error