ERROR BARS

ERROR BARS

Description:

An error bar is a line through a point on a graph, parallel to one of the axes, which represents the uncertainty or variation of the corresponding coordinate of the point.
Error Bars help to indicate estimated error or uncertainty to give a general sense of how precise a measurement is.
This is done through the use of markers drawn over the original graph and its data points.
Typically, Error bars are used to display either the standard deviation, standard error, confidence intervals or the minimum and maximum values in a ranged dataset.
Error Bars can be applied to graphs such as Scatterplots, Dot Plots, Bar Charts or Line Graphs.

Example

A B C
X Y Error
1.6 1.97 0.897
2.51 3.1 0.732
3.55 2.79 0.633
3.83 3.96 0.6
5.47 4.4 0.633
5.77 5.72 0.732
6.89 7.2 0.897
7.76 7.65 1.128
8.78 8.34 1.425

ERRORBARS(A1:C10)

 

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