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Arrange in size order, least to greatest:

-1.27229 -1.2039 -0.79473 -0.454 -0.14221 -0.09066 0.031657 0.036238 0.3143 0.50879 0.564049 0.887703 0.890987 1.35349 1.680193.

median is 0.036238, mean is 0.1539745. The mean is greater than the median so the distribution is skew. In a normal distribution the mean and median are close together. The quartiles are:

Q1=-0.454, Q2=0.036238 (median), Q3=0.887703.

However, the box plot shows that the median and mode are fairly close together and the “whiskers” are of approximately equal length, so the distribution is approximately normal.

ago by Top Rated User (627k points)

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