For the following problems, give the class width, and class limits for a frequency table with the specified number of classes. Use the given minimum and maximum values.
Minimum = 3.9, maximum = 12.7, number of classes = 9.
For the following data sets, tabulate a frequency table, including frequencies and relative
frequencies, and plot a frequency histogram, and a relative frequency histogram. For each
example, classify the distribution as, roughly, one of the following: bell-shaped (normal),
skewed left, skewed right, uniform, or multimodal.
Biology: The journal Environmental Concentration and Toxicology published the
article “Trace Metals in Sea Scallops” (vol. 19, pp. 326 – 1334 ), and gave the following
cadmium amounts (in mg) in sea scallops observed at a number of di§erent
stations in North Atlantic waters.
{5.1, 14.4, 14.7, 10.8, 6.5, 5.7, 7.7, 14.1, 9.5, 3.7, 8.9, 7.9, 7.9, 4.5, 10.1, 5.0, 9.6,
5.5, 5.1, 11.4, 8.0, 12.1, 7.5, 8.5, 13.1, 6.4, 18.0, 27.0, 18.9, 10.8, 13.1, 8.4, 16.9, 2.7,
9.6, 4.5, 12.4, 5.5, 12.7, 17.1}
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