Card 3 / 180: A high school math teacher offers an after-school tutoring session open to all students. To measure student demand for the session, she keeps track of the total number of students attending each week. In the last five weeks, the total attendance was 6, 3, 0, 4, and 2, respectively. Calculate the variance of attendance in the last five weeks. Round your answer to the nearest tenth.
A) 5.0
B) 2.2
C) 4.0
D) 2.5

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