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Warm Up

Preview. Warm Up. California Standards. Lesson Presentation. Warm Up Use the numbers to answer the questions. 146, 161, 114, 178, 150, 134, 172, 131, 128 1. What is the greatest number? 2. What is the least number? 3. How can you find the median?. 178. 114.

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Warm Up

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  1. Preview Warm Up California Standards Lesson Presentation

  2. Warm Up Use the numbers to answer the questions. 146, 161, 114, 178, 150, 134, 172, 131, 128 1.What is the greatest number? 2. What is the least number? 3. How can you find the median? 178 114 Order the numbers and find the middle value.

  3. California Standards SDAP1.2 Understand how additional data added to data sets may affect these computations. Also covered: SDAP1.1, SDAP1.3

  4. Objective: You will learn how (YWLHT) additional data and outliers effect the data.

  5. Vocabulary outlier

  6. The mean, median, mode, and range may change when you add data to a data set.

  7. Example 1: Sports Application Find the mean, median, mode, and range of the data in the table.

  8. Example 1: Sports Application Find the mean, median, mode, and range of the data in the table.

  9. Example 1: Sports Application Find the mean, median, mode, and range of the data in the table.

  10. Example 1: Sports Application Find the mean, median, mode, and range of the data in the table.

  11. Example 2: Sports Application EMS also won 13 games in 1997 and 8 games in 1996. Add this data to the data in the table and find the mean, median, mode, and range.

  12. Check It Out! Example 3 Find the mean, median, mode, and range of the data in the table.

  13. Check It Out! Example 3 Find the mean, median, mode, and range of the data in the table.

  14. Check It Out! Example 3 Find the mean, median, mode, and range of the data in the table.

  15. Check It Out! Example 3 Find the mean, median, mode, and range of the data in the table.

  16. Check It Out! Example 4 MA also won 15 games in 1997 and 8 games in 1996. Add this data to the data in the table and find the mean, median, and mode.

  17. An outlier is a value in a set that is very different from the other values. One way to identify an outlier is by making a line plot. A line plot uses a number line and x’s or other symbols to show the frequencies of values.

  18.        100 200 300 400 500 600 700 800 900 Example 5: Identifying Outliers The table shows the prices of television sets at a discount store. Which price represents an outlier? Step 1: Draw a number line. Step 2: For each television price, use an  on the number line to represent its price in dollars. Prices of Televisions ($) The line plot shows that the value 849 is much greater than the other values in the set. The price of 849 represents an outlier.

  19. 1 2 3 4 5 6 7 8 9 10 11 12 Check It Out! Example 6 The table shows the number of inches of hair cut from a salon's last eight customers. Which length represents an outlier? Step 1: Draw a number line. Step 2: For each length, use an  on the number line to represent its length in inches.         Length of Hair Cuts (in.) The line plot shows that the value 12 is much greater than the other values in the set. The length of 12 represents an outlier.

  20. Example 7: Application Ms. Gray is 25 years old. She took a class with students who were 55, 52, 59, 61, 63, and 58 years old. Find the mean, median, mode, and range with and without Ms. Gray’s age. Data with Ms. Gray’s age:

  21. Example 7: Application Ms. Gray is 25 years old. She took a class with students who were 55, 52, 59, 61, 63, and 58 years old. Find the mean, median, mode, and range with and without Ms. Gray’s age. Data without Ms. Gray’s age:

  22. Check It Out! Example 8 Ms. Pink is 56 years old. She volunteered to work with people who were 25, 22, 27, 24, 26, and 23 years old. Find the mean, median, mode, and range with and without Ms. Pink’s age. Data with Ms. Pink’s age:

  23. Check It Out! Example 8 Ms. Pink is 56 years old. She volunteered to work with people who were 25, 22, 27, 24, 26, and 23 years old. Find the mean, median, mode, and range with and without Ms. Pink’s age. Data without Ms. Pink’s age:

  24. Home Learning On-Line Tutoring

  25. Lesson Quiz At the college bookstore, your brother buys 6 textbooks at the following prices: $21, $58, $68, $125, $36, and $140. 1. Find the mean. 2. Find the median. 3. Find the mode. 4. Your brother signs up for an additional class, and the textbook costs $225. Recalculate the mean, including the extra book. $74.67 $63 none $96.14

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