TFSC EXAM QUESTIONS AND 100%
CORRECT ANSWERS!!
What is the study of measurement?
Metrology
What are the five principles of inquiry?
1. Pose a question
2. Does it link to relevant theories?
3. Use methods of direct investigation to question
4. Does it provide reasoning?
5. Is it empirical?
What is error?
the difference between the experimental value and the accepted value
What is accuracy?
how close a measurement is to the true value
What is uncertainty?
Uncertainty is the doubt that exists about the result
What is precision?
a measure of how close a series of measurements are to one another
What is repeatability?
produces the same results every time
What is reproducability?
Is when different people measure the same object and get a similar answer
confidence level
the estimated probability that a population parameter lies within a given confidence interval
, Tolerance
The maximum acceptable difference between actual value and specified value
What are the six guiding principles of measurement?
1. The right measurement
2. The right tools
3. The right people
4. Have a regular review
5. Demonstrable consistency
6. The right procedure
What are factors that affect measurement?
1. Instruments
2. Object measured
3. Sampling process
4. Operator skill
5. Environmental factors
What are some uncertainty in measurements?
Random and Systematic
Random
by chance, not planned or prearranged; irregular
Sytematic
The same influence affects other results
Prosecutor Fallacy
The invalid interpretation of a valid static. Over valuing evidence
posterior probability
the probability that a hypothesis is true after consideration of the evidence
CORRECT ANSWERS!!
What is the study of measurement?
Metrology
What are the five principles of inquiry?
1. Pose a question
2. Does it link to relevant theories?
3. Use methods of direct investigation to question
4. Does it provide reasoning?
5. Is it empirical?
What is error?
the difference between the experimental value and the accepted value
What is accuracy?
how close a measurement is to the true value
What is uncertainty?
Uncertainty is the doubt that exists about the result
What is precision?
a measure of how close a series of measurements are to one another
What is repeatability?
produces the same results every time
What is reproducability?
Is when different people measure the same object and get a similar answer
confidence level
the estimated probability that a population parameter lies within a given confidence interval
, Tolerance
The maximum acceptable difference between actual value and specified value
What are the six guiding principles of measurement?
1. The right measurement
2. The right tools
3. The right people
4. Have a regular review
5. Demonstrable consistency
6. The right procedure
What are factors that affect measurement?
1. Instruments
2. Object measured
3. Sampling process
4. Operator skill
5. Environmental factors
What are some uncertainty in measurements?
Random and Systematic
Random
by chance, not planned or prearranged; irregular
Sytematic
The same influence affects other results
Prosecutor Fallacy
The invalid interpretation of a valid static. Over valuing evidence
posterior probability
the probability that a hypothesis is true after consideration of the evidence
