The data listed here are the weights (in pounds) of 27 packages of ground beef in a

Question:

The data listed here are the weights (in pounds) of 27 packages of ground beef in a supermarket meat display:

a. Construct a stem and leaf plot or a relative frequency histogram to display the distribution of weights. Is the distribution relatively mound-shaped?
b. Find the mean and standard deviation of the data set.
c. Find the percentage of measurements in the intervals ± s, ± 2s, and ± 3s.
d. How do the percentages obtained in part c compare with those given by the Empirical Rule? Explain.
e. How many of the packages weigh exactly 1 pound? Can you think of any explanation for this?

Distribution
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