Algebra 1B – Notebook Entry #_____ Name: _________________________ Graphical Displays of Data Fill In Notes Date: _________________________ Objective: To create, read, and interpret graphical displays of data. Stem & Leaf Plot Example 1 – Create a Stem and Leaf Plot of the following test scores: {81, 72, 63, 65, 80, 54, 92, 88, 72, 71, 66, 80, 83, 59, 50, 94} Example 2 – Create a Stem and Leaf Plot of the following data set: {5.6, 7.8, 7.1, 9.3, 6.6, 6.0, 7.0, 5.3, 5.8, 8.8, 6.6, 6.3, 9.0, 7.3, 8.4, 8.0, 7.0, 9.9, 5.5, 5.3, 6.6} Example 3: The following stem-and-leaf plot shows the weight of students' dogs in pounds. Key 10|2 = 102 pounds What is the ___________ of the weights? A) _____ pounds B) _____ pounds C) _____ pounds D) _____ pounds Example 4 - Reading a Stem & Leaf Plot How many data points? _______ What is the minimum? ________ What is the median? _________ What is the maximum? ________ What is the range? __________ Key: 3 | 1 = 31

Box & Whisker Plot Characteristics: The _______ begins at _____________________ and ends at ___________________. There is a _______________________ at the _______________. The Whiskers extend from the ends of the box: The _________ one ends at the ________________. The _________ one ends at the _________________. Minimum: _______ Quartile 1: ______ Median: _________ Quartile 3: _______ Maximum: _______ Range: ___________ Interquartile Range: _______ Example 2 – Organize the following data into a Box Plot. {4, 233, 15, 4, 197, 1, 231, 285, 278, 39} __________________________________ Minimum: _______ Quartile 1: ______ Median: _________ Quartile 3: _______ Maximum: _______ Range: ___________ Interquartile Range: _______ Example 3 – Organize the following data into a Box Plot. {7, 26, 26, 28, 29, 29, 32, 33, 37, 37, 39, 40, 41, 44, 48, 52, 53, 63, 88, 96} Minimum: _______ Quartile 1: ______ Median: _________ Quartile 3: _______ Maximum: _______ Range: ___________ Interquartile Range: _______

Example 4 – 110, 112, 117, 125, 125, 126, 127, 130, 134, 143, 150, 160, 170, 172, 185 Minimum: ______ Quartile 1: _____ Median: ______ Quartile 3: ______ Maximum: ______ Range: _________ IQR: _______ Mode: _________ Example 5 - When helping her little sister with her homework, Monique picked some products randomly from the multiplication chart. The products are represented by the box plot below. Example 6 - The line plot below shows the number of hours each student in Ms. Smith's class exercise each week. What is the mean of the data in the graph?

Example 7 - Halle planted mint and basil seeds in her herb garden Example 7 - Halle planted mint and basil seeds in her herb garden. She measured the height of each herb plant at the end of each week for six weeks. The results are show in the line graph below. What is the difference in the mean growth per week for both herbs during the six weeks shown in the graph? Example 8 - The graph below shows the relationship between a team's salary and their winning percentage in a professional sports league. Which of the following is a valid conclusion based on the graph? A) As a team's salary decreases, its winning percentage increases. B) As a team's salary increases, its winning percentage decreases. C) There is no relationship between salary and its winning percentage. D) As a team's salary increases, its winning percentage increases. Example 9 - A company made a bar graph showing the amount of sales for each month in thousands of dollars. Which of the following is the closest to the range of sales for the fourth month period?