The stem-and-leaf display given here shows the final examination scores of students in a sociology course. (Leaf
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The stem-and-leaf display given here shows the final examination scores of students in a sociology course. (Leaf unit 1.0)
Stem-and-Leaf Display of Scores 2 57 3 244 4 1179 5 03368 6 012447 7 223556899 8 00457 9 0036
(a) Find the median score.
(b) Find the quartiles and .
(c) What proportion of the students scored below 70? 80 and over?
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