Which situation involves descriptive statistics?
a) To determine how many outlets might need to be changed, an electrician inspected 20 of them and found 1 that didn't work.
b) Ten percent of the girls on the cheerleading squad are also on the track team.
c) A survey indicates that about 25% of a restaurant's customers want more dessert options.
d) A study shows that the average student leaves a four-year college with a student loan debt of more than $30,000.
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