why are averages used to represent data?Weegy:
No measurement is exactly perfect. In most experiments, if you perform the same measurement twice, the results are slightly different. There will always be random uncertainty and fluctuations in any measurement. As such, you can rarely determine the "exact" value, even when repeating the measurement many times. So we need some way to determine what our estimate of the exact value actually is.
The normal way to do that is to take multiple readings and some kind of average. If the majority of the variation comes from random errors, then by taking a large number of readings, these errors should "even out" and the average value will be very close to the "true" value of the experiment. As such, the average is a very common way of expressing this value.
Measurements such as standard deviation and standard error are used to give some estimate of how spread out the data is. The larger these values, the greater the uncertainty in your measurement.Auto Answered|Score 1Weegy:
Computers question: What code system does personal computers use to represent character data? Ascii ... Why don't computers use decimal number system for represent data? ...http://wiki.answers.com/Q/What_code_system_does_personal_computers_use_to_represent_character_dataAuto Answered|Score .5962Weegy:
In addition to numerical quantities, bytes are used to represent characters inside a ... Data processing: binary code used to represent data in a computer ...http://www.answers.com/topic/bitAuto Answered|Score .5463Weegy:
moving average A method of calculating central tendency over time. The average is ... A moving average is commonly used with time series data to smooth out short-term ...http://www.answers.com/topic/moving-average-1Auto Answered|Score .4986Weegy:
The three types of averages in math are the mean, the median and the mode. The mean is ... Gather a set of data for finding the mean. It is best to use the mean when all of the ...http://www.ehow.com/how_8397562_use-averages-math.htmlAuto Answered|Score .478Weegy:
Averages are calculated to represent a data set meaningfully. For instance, a meteorologist could tell you that the mean temperature for...http://www.ehow.com/list_6009565_differences-arithmetic-geometric-mean.htmlAuto Answered|Score .4216
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