The stem-and-leaf diagram gives the number of hours studied last week by each of 16 students.
Stem 1: leaves 2, 5, 6, 8
Stem 2: leaves 0, 1, 1, 7, 9
Stem 3: leaves 2, 3, 4, 5
Stem 4: leaves 4, 5, 7
Key: 1|2 represents 12 hours.
(a)[1]
Determine the median.
(b)[1]
Determine the mode.
(c)[1]
Determine the range.
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