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Click the mouse button or press the Space Bar to display the answers. Transparency 1

Splash Screen

Organize and interpret data in a frequency table Objective Organize and interpret data in a frequency table Example 1-3b

Collecting, organizing, and interpreting data Vocabulary Statistics Collecting, organizing, and interpreting data Example 1-3b

Vocabulary Data Pieces of information Example 1-3b

Shows the number of pieces of data that fall within given intervals Vocabulary Frequency Table Shows the number of pieces of data that fall within given intervals Example 1-3b

Vocabulary Scale The set of all possible values of a given measurement, including the least and greatest numbers in the set, separated by the intervals used Example 1-3b

Separates the scale into equal parts Vocabulary Interval Separates the scale into equal parts Example 1-3b

Counters used to record items in a group Vocabulary Tally mark Counters used to record items in a group Example 1-3b

Example 1 Make a Frequency Table Example 2 Make and Use a Frequency Table Example 3 Interpret Data Lesson 1 Contents

27 38 46 39 42 20 55 37 52 30 49 35 31 34 23 Winning Scores Source: superbowl.com FOOTBALL Winning Super Bowl scores from 1983 to 2002 are listed below. Make a frequency table of the data. You need a ruler! Make a frequency table with at least 6 rows using the lines on your paper 1/3 Example 1-1a

A frequency table needs 3 columns 27 38 46 39 42 20 55 37 52 30 49 35 31 34 23 Winning Scores Source: superbowl.com FOOTBALL Winning Super Bowl scores from 1983 to 2002 are listed below. Make a frequency table of the data. A frequency table needs 3 columns Leave the top row with no columns for the title 1/3 Example 1-1a

Winning Scores Scores Tally Frequency 27 38 46 39 42 20 55 37 52 30 49 35 31 34 23 Winning Scores Source: superbowl.com Winning Scores Scores Tally Frequency Add Title Add headings to chart The data in the first column which is “scores” The second column is labeled “tally” The third column is “frequency” 1/3 Example 1-1a

Winning Scores Scores Tally Frequency 27 38 46 39 42 20 55 37 52 30 49 35 31 34 23 Winning Scores Source: superbowl.com Winning Scores Scores Tally Frequency Choose an appropriate scale and interval for the data Determine the smallest number Determine the largest number 1/3 Example 1-1a

Winning Scores Scores Tally Frequency 27 38 46 39 42 20 55 37 52 30 49 35 31 34 23 Winning Scores Source: superbowl.com Winning Scores Scores Tally Frequency 20-29 30-39 40-49 50-59 The interval must be the same on each row Since the smallest number is 20 use 20-29 for the first interval The interval is 10 so add 10 to each number to make a new interval 1/3 Example 1-1a

Winning Scores Scores Tally Frequency 27 38 46 39 42 20 55 37 52 30 49 35 31 34 23 Winning Scores Source: superbowl.com Winning Scores Scores Tally Frequency 20-29 I 30-39 I I 40-49 I 50-59 I Make a tally mark for each number 20 is in the group of 20-29 31 is in the group of 30-39 30 is in the group of 30-39 55 is in the group of 50-59 46 is in the group of 40-49 1/3 Example 1-1a

Winning Scores Scores Tally Frequency 27 38 46 39 42 20 55 37 52 30 49 35 31 34 23 Winning Scores Source: superbowl.com Winning Scores Scores Tally Frequency 20-29 I I 30-39 I I I I 40-49 I 50-59 I I 34 is in the group of 30-39 On the 5th tally put a diagonal across the other 4 tally marks 35 is in the group of 30-39 52 is in the group of 50-59 20 is in the group of 20-29 38 is in the group of 30-39 1/3 Example 1-1a

Winning Scores Scores Tally Frequency 27 38 46 39 42 20 55 37 52 30 49 35 31 34 23 Winning Scores Source: superbowl.com Winning Scores Scores Tally Frequency 20-29 I I I I 30-39 I I I I I I 40-49 I I 50-59 I I 23 is in the group of 20-29 27 is in the group of 20-29 37 is in the group of 30-39 42 is in the group of 40-49 38 is in the group of 30-39 1/3 Example 1-1a

Winning Scores Scores Tally Frequency 27 38 46 39 42 20 55 37 52 30 49 35 31 34 23 Winning Scores Source: superbowl.com Winning Scores Scores Tally Frequency 20-29 I I I I I 30-39 I I I I I I I I 40-49 I I I 50-59 I I 34 is in the group of 30-39 49 is in the group of 40-49 20 is in the group of 20-29 39 is in the group of 30-39 27 is in the group of 20-29 1/3 Example 1-1a

Winning Scores Scores Tally Frequency 6 9 3 2 Answer: 27 38 46 39 42 20 55 37 52 30 49 35 31 34 23 Winning Scores Source: superbowl.com Winning Scores Scores Tally Frequency 20-29 I I I I I 6 30-39 I I I I I I I I 9 40-49 I I I 3 50-59 I I 2 Count the tally marks and put the number in the frequency column 1/3 Example 1-1a

TEMPERATURE The daily high temperatures for the last two weeks of August in Cleveland, Ohio are listed below. Make a frequency table of the data. High Temperature (F) 83 85 76 88 69 75 81 90 83 72 79 81 83 92 1/3 Example 1-1b

Answer: High Temperature (F0) 2 II 90-99 7 IIII II 80-89 4 IIII 70-79 1 I 60-69 Frequency Tally Points 1/3 Example 1-1b

Favorite Types of Music MUSIC Kaley asked her classmates about their favorite types of music. The results are shown in the table. Make a frequency table of the data. Then determine the favorite and least favorite types of music. There are 5 categories F P R J C Favorite Types of Music R=rock, J=jazz, C=country, F=top 40, P=rap Make a frequency table with 7 rows using the lines on your paper 2/3 Example 1-2a

A frequency table needs 3 columns Leave the top row with no columns for the title 2/3 Example 1-2a

Favorite Types of Music J C Favorite Types of Music R=rock, J=jazz, C=country, F=top 40, P=rap Favorite Types of Music Type of Music Tally Frequency Add Title Add headings to chart The data in the first column which is “type of music” The second column is labeled “tally” The third column is “frequency” 2/3 Example 1-2a

Favorite Types of Music J C Favorite Types of Music R=rock, J=jazz, C=country, F=top 40, P=rap Favorite Types of Music Type of Music Tally Frequency Rock (R) Jazz (J) Country (C) Top 40 (F) Rap (P) When there are letters there is no need for intervals Write in the categories - DO NOT abbreviate, then put the symbol in parenthesis 2/3 Example 1-2a

Favorite Types of Music J C Favorite Types of Music R=rock, J=jazz, C=country, F=top 40, P=rap Favorite Types of Music Type of Music Tally Frequency Rock (R) Jazz (J) I Country (C) I Top 40 (F) I I Rap (P) I Mark a tally mark for each letter 2/3 Example 1-2a

Favorite Types of Music J C Favorite Types of Music R=rock, J=jazz, C=country, F=top 40, P=rap Favorite Types of Music Type of Music Tally Frequency Rock (R) I I I Jazz (J) I I Country (C) I Top 40 (F) I I Rap (P) I I 2/3 Example 1-2a

Favorite Types of Music J C Favorite Types of Music R=rock, J=jazz, C=country, F=top 40, P=rap Favorite Types of Music Type of Music Tally Frequency Rock (R) I I I I Jazz (J) I I Country (C) I Top 40 (F) I I I I Rap (P) I I I 2/3 Example 1-2a

Favorite Types of Music J C Favorite Types of Music R=rock, J=jazz, C=country, F=top 40, P=rap Favorite Types of Music Type of Music Tally Frequency Rock (R) I I I I Jazz (J) I I Country (C) I I Top 40 (F) I I I I Rap (P) I I I I I 2/3 Example 1-2a

Favorite Types of Music J C Favorite Types of Music R=rock, J=jazz, C=country, F=top 40, P=rap Favorite Types of Music Type of Music Tally Frequency Rock (R) I I I I Jazz (J) I I Country (C) I I Top 40 (F) I I I I I I I Rap (P) I I I I I I I 2/3 Example 1-2a

Favorite Types of Music J C Favorite Types of Music R=rock, J=jazz, C=country, F=top 40, P=rap Favorite Types of Music Type of Music Tally Frequency Rock (R) 5 I I I I Jazz (J) I I 2 Country (C) I I 2 Top 40 (F) I I I I I I I 8 Rap (P) I I I I I I I 8 Count the tally marks and put the number in the frequency column 2/3 Example 1-2a

Favorite Types of Music Then determine the favorite and least favorite types of music. Answer: Favorite Types of Music Favorite will have the most frequency Type of Music Tally Frequency Rock (R) 5 I I I I There are 2 favorites Top 40 and Rap Jazz (J) I I 2 Country (C) I I 2 Least favorite will have the least frequency Top 40 (F) I I I I I I I 8 Rap (P) I I I I I I I 8 There are 2 least favorites Jazz and Country Favorite - Top 40 and Rap Least Favorite - Jazz and Country 2/3 Example 1-2a

Then determine the favorite and least favorite colors. COLORS Samantha asked her classmates about their favorite colors. The results are shown in the table. Make a frequency table of the data. Then determine the favorite and least favorite colors. Y B P R L Favorite Colors Y=yellow, R=red, B=blue, P=pink, L=purple 2/3 Example 1-2b

Least favorite - purple Answer: Favorite Color 2 II purple 4 IIII pink 3 III blue red 7 IIII II yellow Frequency Tally Color Favorite - yellow Least favorite - purple 2/3 Example 1-2b

Record High Temperatures in US TEMPERATURE The frequency table shows the record high temperatures reported by each state of the United States. How many states have reported temperatures above 111? above The key is “above” 1110 Record High Temperatures in US 12 5 Frequency 1 I 130–135 2 II 124–129 14 IIII IIII IIII 118–123 16 IIII IIII IIII I 112–117 IIII IIII II 106–111 IIII 100–105 Tally Temp (F) Add the frequency of all temperatures above 1110 Answer: 33 states 3/3 Example 1-3a

* WEIGHT The frequency table shows the results of a survey of the weights of boys in a seventh grade class. How many of the boys weigh less than 100 pounds? 7th Grade Boys Weight 5 3 Frequency 1 I 120-129 4 IIII 110-119 8 IIII III 100-109 7 IIII II 90-99 80-89 III 70-79 Tally Weight Answer: 15 3/3 Example 1-3b

Assignment Lesson 2:1 Frequency Tables 4 - 12 All End of Lesson 1