Chapter 2 L2-5 Notes: Stem and Leaf Plots. Vocabulary In a stem-and-leaf plot, the data is ordered from least to greatest and is organized by place value.

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Presentation transcript:

Chapter 2 L2-5 Notes: Stem and Leaf Plots

Vocabulary In a stem-and-leaf plot, the data is ordered from least to greatest and is organized by place value.

Sports The number of points scored by the winning team in each NCAA women's basketball championship game from 1982 to 2002 is shown.

Stem-and-Leaf Plot Step 1 Order the data from least to greatest. Step 2 Draw a vertical line and write the tens digits from least to greatest to the left of the line. These digits form the stems. Since the least value is 56 and the greatest value is 97, the stems are 5, 6, 7, 8, and 9. Step 3 Write the units digits in order to the right of the line with the corresponding stem. The units digits form the leaves.

Stem-and-Leaf Plot cont’d… Step 4 Include a key that explains the stems and leaves.

Interpret Stem-and-Leaf Plots Suppose you are doing a science project for which you counted the number of Monarch butterflies you saw each day for one month. The stem-and leaf plot below shows your results. 1.What was the least number of butterflies? 2.What was the greatest number of butterflies? 3.Where does most of the data fall?