Question: The stem-and-leaf display given here shows the final examination scores of students in a sociology course. (Leaf unit = 1.0) (a) Find the median score.

The stem-and-leaf display given here shows the final examination scores of students in a sociology course. (Leaf unit = 1.0)
The stem-and-leaf display given here shows the final examination scores

(a) Find the median score.
(b) Find the quartiles Q1 and Q3.
(c) What proportion of the students scored below 70? 80 and over?

Stem-and-Leaf Display of Scores 2 57 3 244 4 1179 5 03368 6 012447 7 223556899 8 00457 9 0036

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