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Chapter 2: Q. 52 (page 134)
When the data are skewed left, what is the typical relationship between the mean and median?
When the data are skewed to left, the median is greater than the mean.
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What word describes a distribution that has two modes?
Construct a frequency polygon from the frequency distribution for the highest ranked countries for depth of hunger
Use the following information to answer the next three exercises: Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people answered that they generally sell three cars; nineteen generally sell four cars; twelve generally sell five cars; nine generally sell six cars; eleven generally sell seven cars. Calculate the following:
median = _______
On an exam, would it be more desirable to earn a grade with a high or low percentile? Explain
Construct a frequency polygon of U.S. Presidents’ ages at inauguration shown in Table .
Chapter | Descriptive Statistics
Frequency polygons are useful for comparing distributions. This is achieved by overlaying the frequency polygons drawn for different data sets.
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