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Data Presentation

Data is only as good as how it is presented. How do you take hundreds or thousands of data points and create something a human can understand? Check out the world of charts, graphs, and more.

Stem-Leaf Plot

         

How many observations are recorded in the following stem and leaf plot?

\[ \begin{array} { r | l } 14 & 4 2 13 3 \\ 15 & 7 4 \\ 16 & 13 32 7 9 \\ 17 & 7 19 4 \\ \end{array} \]

Victor measured the heights of his students, who ranged from 110 cm to 150 cm. He recorded the data in the following ordered stem and leaf plot.

\[ \begin{array} { r | l } 11 & 0 1 3 5 8 9 \\ 12 & 1 2 4 5 8 \\ 13 & 2 5 5 7 9 \\ 14 & 0 1 2 6 8 \\ \end{array} \]

What is the median height in class?

Victor measured the heights of his students, who ranged from 80 cm to 120 cm. He recorded the data in the following stem and leaf plot.

\[ \begin{array} { r | l } 8 & 8 5 10 \\ 9 & 12 0 10 \\ 10 & 10 8 12 2 \\ 11 & 12 1 8 \\ \end{array} \]

What is the height of the tallest student in class?

Victor measured the heights of his students, who ranged from 80 cm to 120 cm. He recorded the data in the following stem and leaf plot.

\[ \begin{array} { r | l } 8 & 8 5 4 \\ 9 & 16 0 4 \\ 10 & 4 8 16 2 \\ 11 & 16 1 8 \\ \end{array} \]

What is the height of the shortest student in class?

Which of the following statements is always true of Stemplots?

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