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BESC 3010 CH 3 Questions & Answers
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BESC 3010 CH 3 Questions & Answers
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BESC 3010 CH 3 Questions & AnswersOne visual difference between a bar chart and a histogram is that in a histogram... Correct
Ans-the adjacent bars touch but in a bar chart they are separate.
A normal distribution has a value of skewness that is _____. Correct Ans-near zero
A frequency bar graph would be most appropriate for which measurement scales? Correct
Ans-Nominal or ordinal
Which of these measures of central tendency works for nominal variables? Correct Ans-
Neither the mean nor the median works for nominal variables.
When a histogram for a quantitative variable has only one distinct peak, then the distribution is
referred to as... Correct Ans-unimodal
For which levels of measurement can you calculate the mode? Correct Ans-Both ordinal and
interval
Which of these measures is MOST affected by outliers? Correct Ans-the mean
Which of the following measures of central tendency can be used with data on the ratio level of
measurement? Correct Ans-The mean or the mode
What is the mean for these data?
4, 2, 3, 6, 4, 5 Correct Ans-4
Which measure of central tendency is always influenced by outliers? Correct Ans-the mean
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