If a restaurant in Alameda County, California, receives a food safety grade of yellow, that means two or more major food safety violations were identified and corrected during an inspection. The following data are the numbers of restaurants in Alameda County, California, that received yellow grades per day between October 1, 2014, and January 13, 2015.

a. What variable is described by the data? Is it discrete or continuous?
b. Construct a dotplot.
c. What is the frequency of the observation 6 restaurants receiving yellow grades per day? What does it mean in this situation?
d. What observation has the greatest frequency? What is that frequency? What does the frequency mean in this situation?
e. Use the 50th percentile to measure the center of the distribution.

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