CH6: Data Collection - Signal Processing Flashcards
1
Q
What is signal?
A
Real data regarding phenomenon of interest
2
Q
What is noise?
A
Unwanted information. Noise obscures or distorts the signal
3
Q
What does data smoothing do?
A
There are various procedures to remove noise, including data smoothing, that will then allow the real signal to be observed.
4
Q
Noise in data will create ___________. Error can be grouped into one of two categories - __________ and __________.
A
error, systematic, random
5
Q
What is random error?
A
Random error causes one measurement to differ slightly from the next. It comes from unpredictable changes during an experiment
6
Q
What is systematic error?
A
Systematic error means that your measurements of the same thing will vary in predictable ways
