These cause readings to be different from the true value. Random errors may be detected and compensated for by taking a large number of readings. For example: Random errors may be caused by human error, a faulty technique in taking the measurements, or by faulty equipment. e.g. Rachael and Ricky are both timing a very fast pendulum with a stopwatch. Rachael can't count the swings accurately as it is just too fast to keep up - this introduces a random error into her readings as she may think she's counted 20 swings when in fact it was 21. Ricky doesn't use the stopwatch very well. Although he starts it correctly, he is always late pressing stop when the 20 swings are up. This is a random human error.
| ||||||||||||||||||||||||||||
