Transcript Warm-Up #3
August 25, 2011 1. Write your homework in your agenda: Homework and Practice Workbook p. 48 2. Open your HWP workbook to p. 45. Leave it on your desk. 3. Start on Warm-Up #2. HWP p. 45 # 3-7 3) Mean: 30, Median: 30, Mode 30 and 31, Range: 3 4) Mean: 69, Median: 69, Mode: 68 and 70, Range: 6 5) Mean: 49, Median: 50, Mode: 45, Range: 8 6) In 10 yrs, mean age: 16 In 20 yrs, mean age: 26 7) The median and the mode; 12 years K I Categorical Data Describes a quality such as a person’s gender, race, or religion Numerical Data Gives a count or measurement Grouped Frequency Table Organizing data in a table with classes of equal intervals and their frequency Ungrouped Frequency Table Organizing data by showing the number of times each item appears individually M K I M Mean Mode most Median How far is the distance between them? Range Ho What am I Learning Today? Stem and Leaf plot Line plot How will I show that I learned it? Create a stem and leaf plot and a line plot from a given set of data. Organize and analyze data in a stem and leaf plot and line plot. Questions How is data organized in a line plot? Make a line plot with the following data: 10, 10, 12, 6, 12, 11, 8, 9, 9, 10, 7, 10, 9 Answers 1) Make a number line. Include all the values in the data set. (It does not have to start with zero.) 2) Mark an “X” to represent how many times each value appears in the data. 5 x x 6 7 8 x x x x x x x x x x 9 10 11 12 13 Questions Answers What is a stem? Any number in the tens place or higher What is a leaf? Any number in the ones place How is data organized in a stem and leaf plot? 1) Order data from least to greatest. 2) Draw a T chart. List the stems vertically and in numerical order in the left column. 3) List the all the leaves horizontally in the right column next to its appropriate stem. 4) Add a key and a title. Questions Make a stem and leaf plot with the following data: 21, 29, 29, 32, 35, 43, 45, 45, 48,64 Answers Basketball Scores per Player Stems Leaves 2 1 9 9 3 2 5 4 3 5 5 8 5 6 4 DO NOT skip any stems. If a stem has no leaves, there are no data points with that stem. Key: 3 | 0 means 30 Frogs of Flight Jumping Jubilee Frog’s Name Distance in Feet Prince Soggy Bottom 17 Frogzilla 12 Jumping Jack Flash 16 Fearless Freddy 15 Kermit 15 Springer 17 Darwin 7 Hercules 13 Long John Silver 12 Rosie the Ribeter 22 3) What was the most frequent distance? Pesto 14 Jade 15 4) How do you explain Darwin and Rosie the Ribeter’s results? Jumping Jimmy 15 Create a line plot for the data 1) Why is this the best way to organize the data? 2) How many frogs participated in the contest? K I Line Plot Uses a number line and “X”s to show frequencies of values in a data set Stem and Leaf Plot Organizes and displays data by place value so that the frequencies can be compared M August 26, 2010 1. Grab a Computation Challenge, keep it face down and put your name on the back. 2. Write your homework in your agenda: NO HW 3. Open your Homework and Practice workbook to p. 48. Rolling Out a Stem and Leaf Plot You will be rolling and creating two-digit numbers, then arranging your data in stem and leaf plot. Predict which number will be rolled the most. Each player should roll the dice 4 times. Be sure to determine which color die is your tens and ones place before you begin rolling. Write down the numbers rolled by EACH player. Create a stem and leaf plot and answer the questions.