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Probability and Statistics _STAT3101_Sem1_AY26-27
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True or False: The coefficient of variation is useful for comparing the relative variability of two data sets measured in different units (e.g., comparing variability of beam length in mm versus load in kN).
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For the ordered data set 5, 7, 8, 12, 13, 14, 18, 21, 22, the first quartile Q1 is
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For the data set 3, 7, 7, 2, 9, find the mode.
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True or False: A Z-score tells you how many standard deviations a data value is above or below the mean.
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For the ungrouped data set 4, 8, 6, 5, 3, 5, 7, calculate the mean.
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Which type of graph is most appropriate for showing the proportion each category contributes to a whole, expressed as percentages of 360 degrees?
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True or False: The mean is more sensitive to outliers (extreme values) than the median.
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True or False: In a histogram, the height of each bar represents the frequency (or frequency density) of the class it represents.
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For the data set 2, 4, 4, 6, 9, the range is
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A histogram differs from a bar chart mainly because a histogram
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