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Organizing and Displaying Data

Learn how to create frequency tables to display data occurrences and line plots to visualize data distribution. Practice calculating ranges and creating visual representations of data.

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Organizing and Displaying Data

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  1. Organizing and Displaying Data Lesson 7-2

  2. Frequency Table • A frequency table lists each item in a data set with the number of times each item occurs. Example: Place the favorite NFL teams into a frequency table. 49ers Bears Bears Bears Bills Rams Bears Steelers 49ers Broncos Rams Lions

  3. Favorite Team Team Tally Frequency 49ers II 2 Bears IIII 4 Bills I 1 Broncos I 1 Lions I 1 Rams II 2 Steelers I 1

  4. Line Plot • A line plot is a graph that shows the shape of the data set by stacking X’s above each data value on a number line. Draw a line plot for the following semester grades: Grade Students A 4 B 7 C 5 D 1

  5. Semester Grades X X X X X X X X X X X X X X X X X A B C D

  6. Range • The range of a data set is the difference between the least and greatest values. • Subtract: Highest number minus lowest number.

  7. Homework Time

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