A column in this data file gives the engine displacement in liters of 509 vehicles sold in
Question:
(a) Produce a histogram of the engine displacements, with the interval widths set to 1/2 liter and the first bin starting at 1.25 liter. Describe and interpret the histogram.
(b) Repeat (a), but with the width of the intervals set to 1 liter and the smallest interval beginning at 1 liter.
(c) Does the size of the interval width change your impression of the distribution? Explain briefly.
(d) Find the mean and standard deviation of the engine displacements. How are these related to the histogram?
(e) Find the coefficient of variation and briefly interpret its value.
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a Multimodal with modes at 35 and 25 liters b Roughly unimodal with a dip betwee...View the full answer
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Related Book For
Statistics For Business Decision Making And Analysis
ISBN: 9780321890269
2nd Edition
Authors: Robert Stine, Dean Foster
Question Posted:
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