An Intro to Percent Error | Math with Mr. J
Interactive Video
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Mathematics
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Hard
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4 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main purpose of calculating percent error?
To find the exact value of a measurement.
To see how far off an estimate is from the actual value.
To convert a decimal to a percentage.
To determine if an estimate is positive or negative.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which formula correctly represents how to calculate percent error?
(Actual - Estimated) / Estimated * 100
|Measured or Estimated - Actual| / Actual * 100
(Measured + Actual) / 2 * 100
|Actual - Measured or Estimated| * 100
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the first example, a restaurant owner estimated 45 customers for lunch, but 36 actually came. What is the error in the owner's estimate?
9
-9
45
36
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Using the information from the first example (estimated 45 customers, actual 36 customers), what is the percent error?
20%
25%
9%
36%
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