Bell Curve

    A bell curve is a graphical representation showing the range of performance that one can expect of a person, group, or object. It has an approximately normal distribution that resembles the shape of a bell. The top of the bell curve shows the mean and median values. Below are the low tier values considered sub-standard performance and, therefore, unacceptable.

    The mean (average) and median (middle) are plotted on the x-axis, while the variables are plotted on the y-axis. Essentially, it takes a data set and plans it in order from best to worst performance, regardless of how many people are in a group. It gives an accurate representation of where someone would fall within a specific range of individuals.

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