Understanding Approximation and Errors

Quiz
•
Mathematics
•
8th Grade
•
Medium
+3
Standards-aligned

wukolo 7W11KL6
Used 3+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula to calculate percentage error?
(Actual Value - Estimated Value) * 100
(Estimated Value + Actual Value) / 2
(Estimated Value / Actual Value) * 100
(|Estimated Value - Actual Value| / |Actual Value|) * 100
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a measurement is 50 and the true value is 52, what is the percentage error?
4.00%
5.00%
3.85%
2.50%
Tags
CCSS.6.RP.A.3C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many significant figures are in the number 0.00456?
3
5
4
2
Tags
CCSS.8.EE.A.4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Round the number 123.456 to two decimal places.
123.46
123.50
123.45
124.00
Tags
CCSS.5.NBT.A.4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is absolute error?
Absolute error is calculated as measured value + true value.
Absolute error is the average of all measured values.
Absolute error is calculated as |measured value - true value|.
Absolute error is the difference between two measured values.
Tags
CCSS.6.RP.A.3C
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the measured value is 10 and the true value is 12, what is the absolute error?
1
3
5
2
Tags
CCSS.6.RP.A.3D
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Define relative error in your own words.
Relative error is the difference between the measured value and the true value.
Relative error is the total error in a measurement without reference to the true value.
Relative error is the average of all errors in a set of measurements.
Relative error is the ratio of the absolute error to the true value, often expressed as a percentage.
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