As part of a semester project in a statistics course, Carlos surveyed a sample of 50 high school students and asked, "How many days in the past week have you consumed an alcoholic beverage?" The results of the survey are shown next.
(a) Is this data discrete or continuous?
(b) Draw a histogram of the data and describe its shape.
(c) Based on the shape of the histogram, do you expect the mean
to be more than, equal to, or less than the median?
(d) Determine the mean and the median. What does this tell you?
(e) Determine the mode.
(f ) Do you believe that Carlos’s survey suffers from sampling bias? Why? bias? Why?

  • CreatedApril 27, 2015
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