Time spent waiting in line for each moviegoer at each of four movie theaters in Downtown San Francisco was measured on a Saturday night. The frequencies for each amount of minutes spent waiting in line are shown on the histograms below. Theater B 15 Thester A 10 10 9 10 O 10 Theater D Theater C 15 15 10 10 01234 5678 9 10 0 1 2 3 4 S 6 7 8 9 10 Consider the variable time-spent-waiting-in-line. Which of the theaters would you expect to have the smallest standard deviation, and why?

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