Box-and-Whisker Plots

Slides:



Advertisements
Similar presentations
Objective Box-and-Whisker Plots Draw a box-and-whisker plot to organize real-life data. Read and interpret a box-and-whisker plot of real-life data.
Advertisements

Box-and-Whisker Plots
Holt CA Course Box-and-Whisker Plots Warm Up 1. Order the test scores from least to greatest: 89, 93, 79, 87, 91, 88, Find the median of the.
Do Now 1/31/12 Take out HW from last night. Take out HW from last night. –Text p. 278, #1-13 all, #20 & 21 Copy HW in your planner. Copy HW in your planner.
Warm-Up Exercises 1.Write the numbers in order from least to greatest. 82, 45, 98, 87, 82, The heights in inches of the basketball players in order.
Quartiles & Extremes (displayed in a Box-and-Whisker Plot) Lower Extreme Lower Quartile Median Upper Quartile Upper Extreme Back.
Box-and-Whisker Plots
Box-and-Whisker Plots
Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.
Objectives Create and interpret box-and-whisker plots.
Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.
Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.
6-9 Data Distributions Objective Create and interpret box-and-whisker plots.
Quantitative data. mean median mode range  average add all of the numbers and divide by the number of numbers you have  the middle number when the numbers.
Populations & Samples January 10, 2013.
Box Plots March 20, th grade. What is a box plot? Box plots are used to represent data that is measured and divided into four equal parts. These.
Introductory Statistics Lesson 2.5 A Objective: SSBAT find the first, second and third quartiles of a data set. SSBAT find the interquartile range of a.
Holt McDougal Algebra Data Distributions Warm Up Identify the least and greatest value in each set Use the data below to make a stem-and-
7-5 Box-and-Whisker Plots Course 2. Warm Up Use the data below for Questions , 25, 37, 53, 26, 12, 70, What is the mean? 2. What is the median?
Learn to display and analyze data in box-and-whisker plots. Course Box-and-Whisker Plots.
Holt CA Course Box-and-Whisker Plots Warm Up Warm Up California Standards California Standards Lesson Presentation Lesson PresentationPreview.
Holt McDougal Algebra 1 Data Distributions Holt Algebra 1 Warm Up Warm Up Lesson Presentation Lesson Presentation Lesson Quiz Lesson Quiz Holt McDougal.
7-2 Box-and-Whisker Plots. 7-2 Box-and-Whisker Plots Lesson 7.2.
10-3 Data Distributions Warm Up Lesson Presentation Lesson Quiz
Box-and-Whisker Plots
Box-and-Whisker Plots
Find the lower and upper quartiles for the data set.
Learn to display and analyze data in box-and- whisker plots.
Compute the minimum, lower quartile, upper quartile, and the maximum
10-3 Data Distributions Warm Up Lesson Presentation Lesson Quiz
Lesson 6.7: Box-and-Whisker Plots
Warm Up Use the data below for Questions 1-4.
Box-and-Whisker Plots
Box-and-Whisker Plots
10-3 Data Distributions Warm Up Lesson Presentation Lesson Quiz
Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.
Vocabulary box-and-whisker plot lower quartile upper quartile
Box-and-Whisker Plots
Box and Whisker Plots 50% Step 1 – Order the series.
BOX-and-WHISKER PLOT (Box Plot)
Box-and-Whisker Plots
Box-and-Whisker Plots
Lesson 11.2 Objective: To draw a box and whisker plot from a data list. EQ: How many sections are there in a box and whisker plot? Vocabulary: Box-and.
9-4 Variability Warm Up Problem of the Day Lesson Presentation
Box-and-Whisker Plots
How to make a box and whisker plot
Unit 12: Intro to Statistics
Box-And-Whisker Plots
Comparing Data Displays in Box Plots
Box-and-Whisker Plots
Measures of Central Tendency and Variation 8-1
Box-and-Whisker Plots
Preview Warm Up California Standards Lesson Presentation.
Main Idea and New Vocabulary
Box-and-Whisker Plots
10-3 Data Distributions Warm Up Lesson Presentation Lesson Quiz
Box-and-Whisker Plots
Box-and-Whisker Plots
. . Box and Whisker Measures of Variation Measures of Variation 8 12
Box-And-Whisker Plots
Box-And-Whisker Plots
Box and Whisker Plots.
Box-and-Whisker Plots
Box-and-Whisker Plots
Box-and-Whisker Plots
Warm-Up Define mean, median, mode, and range in your own words. Be ready to discuss.
Box-and-Whisker Plots
Preview Warm Up California Standards Lesson Presentation.
Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.
BOX-and-WHISKER PLOT (Box Plot)
Presentation transcript:

Box-and-Whisker Plots 7-5 Box-and-Whisker Plots Warm Up Problem of the Day Lesson Presentation Course 2

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Warm Up Use the data below for Questions 1-4. 14, 25, 37, 53, 26, 12, 70, 31 1. What is the mean? 2. What is the median? 3. What is the mode? 4. What is the range? 33.5 28.5 none 58

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Problem of the Day If the sixth-graders checked out 160 books, how many does each symbol in this pictograph represent?             Library Books Checked Out Sixth Grade Seventh Grade Eighth Grade 32 books

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Learn to display and analyze data in box-and-whisker plots.

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Vocabulary box-and-whisker plot lower quartile upper quartile interquartile range

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots A box-and-whisker plot uses a number line to show the distribution of a set of data. To make a box-and-whisker plot, first divide the data into four equal parts using quartiles. The median, or middle quartile, divides the data into a lower half and an upper half. The median of the lower half is the lower quartile, and the median of the upper half is the upper quartile.

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots To find the median of a data set with an even number of values, find the mean of the two middle values. Caution!

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Additional Example 1: Making a Box-and-Whisker Plot Use the data to make a box-and-whisker plot. 73 67 75 81 67 75 85 69 Step 1: Order the data from least to greatest. Then find the least and greatest values, the median, and the lower and upper quartiles. The least value. The greatest value. 67 69 73 75 81 85 67 69 73 75 81 85 + Find the median. 2 =74

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Additional Example 1 Continued Step 1 Continued 67 69 73 75 81 85 67 + 69 lower quartile = = 68 2 75 + 81 upper quartile = = 78 2

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Additional Example 1 Continued Step 2: Draw a number line. Above the number line, plot points for each value in Step 1. Step 3: Draw a box from the lower to the upper quartile. Inside the box, draw a vertical line through the median. Then draw the “whiskers” from the box to the least and greatest values. 64 66 68 70 72 74 76 78 80 82 84 86

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Check It Out: Example 1 Use the data to make a box-and-whisker plot. 42 22 31 27 24 38 35 Step 1: Order the data from least to greatest. Then find the least and greatest values, the median, and the lower and upper quartiles. The least value. The greatest value. 22 24 27 31 35 38 42 22 24 27 31 35 38 42 The median. The upper and lower quartiles. 22 24 27 31 35 38 42

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Check It Out: Example 1 Continued Step 2: Draw a number line. Above the number line, plot a point for each value in Step 1. Step 3: Draw a box from the lower to the upper quartile. Inside the box, draw a vertical line through the median. Then draw the “whiskers” from the box to the least and greatest values. 20 22 24 26 28 30 32 34 36 38 40 42

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Additional Example 2A: Comparing Box-and-Whisker Plot Use the box-and-whisker plots below to answer each question. Basketball Players Baseball Players 64 66 68 70 72 74 76 78 80 82 84 86 t Heights of Basketball and Baseball Players (in.) Which set of heights of players has a greater median? The median height of basketball players, about 74 inches, is greater than the median height of baseball players, about 70 inches.

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Additional Example 2B: Comparing Box-and-Whisker Plot Use the box-and-whisker plots below to answer each question. Basketball Players Baseball Players 64 66 68 70 72 74 76 78 80 82 84 86 t Heights of Basketball and Baseball Players (in.) Which players have a greater interquartile range? The basketball players have a longer box, so they have a greater interquartile range.

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Additional Example 2C: Comparing Box-and-Whisker Plot Use the box-and-whisker plots below to answer each question. Basketball Players Baseball Players 64 66 68 70 72 74 76 78 80 82 84 86 t Heights of Basketball and Baseball Players (in.) Which group of players has more predictability in their height? The range and interquartile range are smaller for the baseball players, so the heights for the baseball players are more predictable.

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Check It Out: Example 2A Use the box-and-whisker plots below to answer each question. Maroon’s Shoe Store Sage’s Shoe Store 20 24 26 28 30 32 34 36 38 40 42 44 t Number of Shoes Sold in One Week at Each Store Which shoe store has a greater median? The median number of shoes sold in one week at Sage’s Shoe Store, about 32, is greater than the median number of shoes sold in one week at Maroon’s Shoe Store, about 28.

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Check It Out: Example 2B Use the box-and-whisker plots below to answer each question. Maroon’s Shoe Store Sage’s Shoe Store 20 24 26 28 30 32 34 36 38 40 42 44 t Number of Shoes Sold in One Week at Each Store Which shoe store has a greater interquartile range? Maroon’s shoe store has a longer box, so it has a greater interquartile range.

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Check It Out: Example 2C Use the box-and-whisker plots below to answer each question. Maroon’s Shoe Store Sage’s Shoe Store 20 24 26 28 30 32 34 36 38 40 42 44 t Number of Shoes Sold in One Week at Each Store Which shoe store appears to be more predictable in the number of shoes sold per week? The range and interquartile range are smaller for Sage’s Shoe Store, so the number of shoes sold per week is more predictable at. Sage’s Shoe Store.

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Lesson Quiz: Part I Use the data for Questions 1-3. 24, 20, 18, 25, 22, 32, 30, 29, 35, 30, 28, 24, 38 1. Create a box-and-whisker plot for the data. 2. What is the range? 3. What is the 3rd quartile? 20 31 18 20 22 24 26 28 30 32 34 36 38 40

Box-and-Whisker Plots Course 2 7-5 Box-and-Whisker Plots Lesson Quiz: Part II 4. Compare the box-and-whisker plots below. Which has the greater interquartile range? They are the same. 18 20 22 24 26 28 30 32 34 36 38 40