What is the surface area of a rectangular prism with length 5 cm, width 3 cm, and height 2 cm?
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What is the average number of books read per month by a group of 20 students if the data set is: [2, 3, 4, 5, 2, 3, 4, 6, 7, 1, 3, 2, 2, 4, 5, 3, 4, 5, 2, 6]?