Stats - Quick Review

4. Explain what normally distributed data is and compare it to skewed or unequally distributed data. Give an image or two to help you explain. Normally distributed data is the data values that group symmetrically around a central value, when the data is plotted into a curve. Here, as you can see, in the normal distribution curve, the mode, median and mean coincide.

Whereas, in the skewed or unequally distribution curve, values reduce in frequency more rapidly on side of the most frequently obtained value than the other. Hence, the measurement of inequality of the data is the difference between the mean and mode.