please give me some examples. thank u
2006-09-16 08:36:59 · 5 answers · asked by anonymous 2 in Science & Mathematics ➔ Chemistry
Random errors - arise from random fluctuations in the measurements
Systematic/bias errors are consistent and repeatable (constant offset)
To differentiate between the two:
Random errors are reduced when experiment is repeated many times; get a mean value
The systematic error (bias) will not change: systematic errors can be studied through intercomparisons, calibrations, and error propagation - very common type of error
Random errors are studied through statistical analysis of repeated measurements (mean, standard deviation, and variance are often used)
An example would be the reading of a thermometer. Say the actual reading was 35.5 degrees. Some people may read that as 35.4 and some as 35.6 because of their eyesight or parallex error. Those are radom errors.
However if there was a mistake on the calibration of the scale and it reads 36.5 instead of 35.5 that is a systematic error. It is out by 1 degree every time.
2006-09-16 08:42:59 · answer #1 · answered by Tammi J 3 · 5⤊ 0⤋
Suppose you're teaching marksmanship at the Army training center. The new recruits are terrible shots, The targets have holes above, below, right and left of the bullseye. THose are random errors. But after a while you they get better. The bullet holes in the target are closer and closer to the bullseye. THat is a decrease in random error. But then you notice that one guy who is a pretty good shot is getting a lot of hits that are to the right of the bullseye... that is a systematic error - you check his gun and find out that the sights are damaged - he was aiming properly but the gun was working wrong and the results at the target were consistently wrong in a certain way - off to the right.
2006-09-16 12:05:06 · answer #2 · answered by matt 7 · 1⤊ 0⤋
Great Start. This is one of the most intelligent questions I have seen on this site. Well done Random error, is just that. Systematic error is human induced. How much credence you give it is your choice. I suggest a cautious approach. Ian M
2016-03-27 04:15:26 · answer #3 · answered by Diana 4 · 0⤊ 0⤋
I'm pretty sure the difference is that a random error is just random but a systematic error happens somewhat frequently and can be expected.
2006-09-16 09:01:44 · answer #4 · answered by wave_with_all_ur_fingers 3 · 0⤊ 2⤋
If we give an example, does that mean we've completed your homework assignment for you??
My answer is: A random error is someone who selects the wrong answer to their homework assignment, once. A systematic error is someone who selects the same wrong answer systematically, i.e., over and over again!
2006-09-16 08:45:28 · answer #5 · answered by i_troll_therefore_i_am 4 · 0⤊ 1⤋