# Download MathScape: Seeing and Thinking Mathematically, Course 3, by McGraw-Hill Education PDF

By McGraw-Hill Education

Read or Download MathScape: Seeing and Thinking Mathematically, Course 3, Mathematics in Motion, Student Guide (Mathscape: Seeing and Thinking Mathematically) PDF

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Extra resources for MathScape: Seeing and Thinking Mathematically, Course 3, Mathematics in Motion, Student Guide (Mathscape: Seeing and Thinking Mathematically)

Sample text

Two teams of students timed how long they could balance on one foot with their eyes closed and arms extended overhead. Follow these steps to compare the teams. 1 On graph paper, make a stem-and-leaf plot for Team B. Be sure to put the numbers in order from least to greatest. 2 Find the median for each team. 3 How are the shapes of the two stem-and-leaf plots different? What does that tell you about the differences between the teams? 4 Which team do you think is better at balancing? Use data to support your conclusions.

LOOKING BEHIND THE NUMBERS • LESSON 5 016-023_MS G8 U1_866820-4 12/12/03 1:27 PM Page 17 mac85 Mac 85:1st shift: 1268_tm:6037a:G8 Mathscapes Student Guide U1: Make Back-to-Back Stem-and-Leaf Plots Now that your class has collected lots of data, it’s time to make comparisons. Which are longer, students’ feet or their forearms? 1 On graph paper, make a back-to-back stem-and-leaf plot for the class’s foot and forearm data. Before you begin, make sure to put each data set in order from least to greatest values.

Of 5? lll l lll lll l lll l l ll lll l 3. Add up all the ratings to find the total. 4. What is the class average, or mean rating? Extending Concepts Number of Participants in Exercise Programs 5 Ages of People Who Played Soccer in 1994 Exercising with equipment Running/jogging 7–11 years 44% 12–17 yrs 28% 4 Number of 3 Participants (millions) 2 8% 35ϩ 1 0 1988 1990 1992 1994 8% 11% 25–34 18–24 yrs yrs Give specific data to support your answer to each question below. 6. Of the people who played soccer in 1994, 35 30 25 Percentage of Football 20 15 Players 10 5 0 7– 12– 18– 25– 35+ 11 17 24 34 7.