Error bars on a graph indicate ____.
A) places where the data is likely wrong
B) places where the researcher is unsure of his or her results
C) variation in results that cannot be accounted for
D) variation in a set of data around the average
E) poor experimental technique on the part of the researcher

Question

Quizplus · Accepted Answer

Error bars on a graph are used to represent the variability of the data, showing the range within which the true mean (average) of the data is expected to lie. This can include standard deviation, standard error, or confidence intervals, all of which provide insight into the precision and reliability of the measured average.

Error Bars on a Graph Indicate ____