The following scores represent the final examination grade for an elementary statistics course:(a) Construct a stem-and-leaf plot for the examination grades in which the stems are 1, 2, 3,. . . 9.(b) Set up a relative frequency distribution.(c) Construct a relative frequency histogram, draw an estimate of the graph of the distribution and discuss the skewness of the distribution.(d) Compute the sample mean, sample median, and sample standarddeviation.

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