
MEC400 - Chapter 5: Data Acquisition and Representation Quiz
Authored by NV David
Physics
University
Used 10+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the process of quantifying physical quantities using calibrated instruments and established procedures to obtain numerical values of varying degree called?
Measurement
Parameter
Standard
Calibration
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of variable is a quantity that may change during the course of investigation?
Parameter
Independent variable
Variable
Dependent variable
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the study of the relationships among variables used to determine a curve that minimizes the error and provides a good approximation to the physical problem?
Linear regression
Statistical analysis
Empirical function
Regression analysis
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the criterion for least-squares approach to minimize the sum of the squares of the residuals?
Minimize the total error
Minimize the sum of the absolute values of the differences
Minimize the sum of the squares of the errors
Minimize the sum of the squares of the residuals
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the coefficient of correlation that indicates the straight line is a good fit to the data?
r = ± 1
r = 0.8
r = 0
0 < r < 1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the science of decision making in uncertain situations?
Empirical function
Regression analysis
Error analysis
Statistical analysis
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the process of validating a measuring instrument into agreement with the physical standard(s) upon which the instrument is based?
Parameter
Standard
Calibration
Measurement
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