Q1. In a frequency distribution histogram, the frequency of an interval is given by the: A) height multiplied by the width of the corresponding bar. B) width of the corresponding bar. C) height of the corresponding bar.
Q2. Which of the following indicates the frequency of an interval in a frequency distribution histogram? A) Height of the corresponding bar. B) Horizontal logarithmic scale. C) Width of the corresponding bar.
Q3. Which of the following statements about histograms and frequency polygons is least accurate? A) A frequency polygon is constructed by plotting the midpoint of each interval on the horizontal axis. B) A histogram and a frequency polygon both plot the absolute frequency on the vertical axis. C) A histogram connects points with a straight line.
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发表于 2009-1-6 11:05
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