Vocabulary Graphs and Statistics

Transcription

1 11 Vocabulary Graphs and Statistics Fill in each blank with the word that best fits the description. Use the words in the box below. data graph pictograph mean median mode histogram probability 1. a visual display that shows data in different ways. sum of the data divided by the number of data; also called average the number or numbers that appear most often in a set of data. the chance that an event will occur 5. information gathered from surveys or experiments. the middle number when data are ordered from least to greatest 7. a graph that shows how many times an event occurred. a graph that uses pictures to represent data 11

2 1 Review Mean (Average) Lesson 1 The mean is an average. The average describes the typical number in a set. Sum of the numbers Mean = Number of numbers Robin s test grades in English are 3, 75, 7, and 9. What is her mean test grade? Mean Robin s mean test grade in English is %. Find the mean of each set of numbers. 1., 15, 3, 5., 75, 1, 17, 137 1,, 7,., 1, 11 5., 3, 3,,, 9, 11, 1., 1.5,.5, , 9, 7, 5, 5, ,, 3, 9.,.,.5, 7, 11. 1, 17, 1, 1, ,, 1. $1, $13, $11, $15, $1

3 13 Review Median and Mode Lesson 19 The median is the middle number when a set of numbers is in order from least to greatest. If there is an even number of numbers, the median is the average of the two middle numbers. Find the median. Place the numbers in order. Find the average of the two middle numbers The median is The mode is the number that occurs most often. Find the mode The mode is 9. Find the median of each set of numbers. Remember to put the numbers in order first. 1., 1, 7, 31,. 7, 3, 17, 3, 1, 31, 9, 33, 3, 3, 31, 35. 5, 17,, 7 5., 35, 7, 5, 55,, 9. 11,, 3, 1, 7..9, 3,.5,., , 11., 1.5, 1. Find the mode of each set of numbers ,, 9, 11, 1, ,.,.7, 3,., , 1,, 3, 1, 3, 1. 9, 7, 5, 3 13

4 1 Practice Pictographs Lesson 11 Make a pictograph of the information in each table. Remember to draw the symbol in the key. 1. Round to the nearest thousand. Color of Cars Sold Color Total Number of Cars Sold Red Blue White Black,77 7,1,9,39 Rounded Data. Round to the nearest hundred. High School Class Size Grade Total Number of Students Rounded Data Round to the nearest ten. Money Collected for Homeless 1 Total Collected Tim Keri Tasha $5 $37 $1 Rounded Data

5 Practice Single Bar Graphs 15 Lesson 1 Make a horizontal bar graph for the data in each table. Remember to label the intervals. 1. After-School Activities Club Number of Students Drama club Multicultural club Basketball teams Chorus Inches of Snowfall in Chicago Month Inches November December January February

6 Practice Double Bar Graphs 1 Lesson 13 Make a horizontal double bar graph for the data in each table. Remember to label the intervals. 1. Basketball Games Won Team Royals Kings Riders New England Tourists State October November Massachusetts Vermont Maine Connecticut 1,,,,5 9,5, 3,5, Weekly Hours Worked Week 1 Week Dashon Bea Mathias Christopher

7 Practice Single Line Graphs 17 Lesson 1 Make a line graph for the data in each table. Remember to label the intervals. 1.. Closing Prices for a Share of D&S Stock Day Closing Price Monday Tuesday Wednesday Thursday Friday $ $1 $15 $1 $1 17

8 Practice Double Line Graphs 1 Lesson 15 Make a line graph for the data in each table. Remember to label the intervals. 1.. Correspondence Sent Month Regular Mail June July August September Wind Speed in Miles per Hour Time of Day : A.M. 11: A.M. 3: P.M. 7: P.M. Inland Music Sales Month June July August September 1 Coast 5 5 CD Tape

9 Practice Circle Graphs 19 Lesson 17 Use the circle graph below to find the number of singers in each section of the All-County Chorus. All-County Chorus Singers Basses 1% Sopranos 5% Altos 3% Tenors 35% 1. Tenors. Sopranos Basses. How many people are altos and sopranos altogether? 5. Which two sections combined make up about half of the All-County Chorus?. Which section is the same size as the bass and sopranos together? 19

10 17 Practice Histograms Lesson 11 Use the histogram below to answer Questions 1 to Math Test Scores Number of Studens Scores 1. How many students received a math score between 71 and?. What scores were received most frequently? How many students received a score of or below? Use the histogram below to answer Questions to. Weights of Pets That Students in Our Class Have 1 Number of Pets and over Weight in Pounds. How many pets weigh between 1 and 11 pounds? 5. What weight was recorded most often?. How many pets weigh 1 pounds or more? 17

11 Math in Your Life Making a Budget 171 Lesson 17 Find the percents for each cost in the Garcia s budget. Label the circle graph with the costs and percents. 1. Housing. Food GARCIA S MONTHLY BUDGET OF $3, Utilities Expense Amount Food $ Housing $9 Cars $39 Recreation $3 Utilities $3 Savings $1 Other $7. Savings 5. Recreation. Other Find the percents for each cost in the McPherson s budget. Label the circle graph with the costs and percents. 7. Housing. Food McPHERSON'S MONTHLY BUDGET OF $,5 9. Utilities Expense Amount Food $5 Housing $5 Cars $3 Recreation $5 Utilities $5 Savings $1 Other $35 1. Savings 11. Cars 171

12 17 Challenge Using Graphs Lessons 13, 1 19 Use the graph to answer the questions. Graph 1 Amusement Park Visitors Friday Day Thursday Wednesday Tuesday Morning Monday Afternoon 5, 1, 15,, Visitors 1. How many visitors altogether came to the amusement park in the morning during the week?. What was the mean number of visitors in the morning? What was the median number of visitors in the morning?. How many visitors altogether came to the amusement park in the afternoon during the week? 5. What was the mean number of visitors in the afternoon?. What was the median number of visitors in the afternoon? 7. What was the difference between the mode for the morning visitors and the mode for the afternoon visitors?. Suppose 5, more visitors came in the morning on Friday. Then what would the mean be? Would the median and mode change? 17

13 Chapter 13 Test A Graphs and Statistics 173 Solve. 1. In a pictograph, 1, residents Town Genesco Lima Avon Livonia How many symbols are needed to show each amount in the table?. Make a horizontal bar graph using data from the table above. Residents, 5, 1, 7, Make a line graph using data from the table above. Use the graph to answer each question. Dance Classes Total: Students. How many students are in the ballet class? Jazz 11% 5. How many total students are in the tap and modern classes? Ballet Modern 35% % Tap % Swing 1% Find the mean, median, and mode of each set of numbers..,, 5,, 3, 7,,,,,, 9, , 1, 3,, 3, 7, 17, 3, 9, 3 Find the probability of each event.. Choosing a white golf ball 9. Choosing a gray golf ball 1. Choosing a black golf ball 173

14 Chapter 13 Test B Graphs and Statistics 17 Solve. 1. In a pictograph, 1, cars How many symbols are needed to show each amount in the table?. Make a horizontal bar graph using data from the table above. Make a line graph using data from the table above. Use the graph to answer each question. Business Classes Total: Students. How many students take an accounting class? 5. How many total students take small business and computer programming classes? Small Business % Accounting 1% Economics 7% Business Finance 5% Computer Programming 3% Find the mean, median, and mode of each set of numbers.. 5,, 3, 7,, 1, 1, 3,, 5,,, 3 7., 37, 3,, 9, 1, 3, 31,, 5 Find the probability of each event.. Choosing a gray golf ball 9. Choosing a black golf ball 1. Choosing a white golf ball 17

15 Answer UNIT MEASUREMENT AND GEOMETRY. Attendance 9th Grade Chapter 13 Graphs and Statistics 11 Vocabulary Graphs and Statistics 1. graph. mean mode. probability 5. data. median 7. histogram. pictograph 1th 11th 1th 1 Review Mean (Average) $ Number of Students 13 Review Median and Mode and none Snowfall 1 Practice Pictographs 1. Nov. Color of Cars Sold Month 1, cars Red Blue White Black Dec. Jan. Feb Inches. High School Class Size 1 students 1 Practice Double Bar Graphs 9th Grade 1th Grade 11th Grade 1th Grade Basketball Games Won Royals Team 1. Kings Money Collected for Homeless $1 Riders Tim Keri Tasha 1 1 Games Won Practice Single Bar Graphs 1. After-School Activities Club Drama Multicultural Basketball Chorus Number of Students Pacemaker Interactive Classroom Resources CD-ROM for Basic Mathematics Answer

16 Answer. New England Tourists Number of Books Published Massachusetts Number of Books 5 State Vermont Maine Connecticut Number of Tourists (thousands) Oct. Y Nov. Closing Price Weekly Hours Worked Dashon Bea D & S Stock Mon. Tue. Wed. Thur. Fri. Day Mathias 1 Practice Double Line Graphs Christopher Correspondence Sent 5 Number of Hours Week 1 Week 17 Practice Single Line Graphs 15 Mail 1 Snowfall Snowfall in Inches June July Aug. Sept. Month Regular Nov. Dec. Jan. Feb. Mar. Month Pacemaker Interactive Classroom Resources CD-ROM for Basic Mathematics Answer

17 Answer. McPherson s Monthly Budget Wind Speed (mph) 5 Utilities 1% Cars 1% Wind Speed Savings % 3 Recreation 1% Other 1% 1 A.M. 11 A.M. 3 P.M. 7 P.M. Time of Day Coast Inland Music Sales Food 5% 1. 3%. % 1%. % 5. 1%. 9% 7. 5%. 5% 9. 1% 1. % 11. 1% 17 Challenge Using Graphs 1. 57,5 visitors. 11,5 visitors 1,5 visitors. 77,5 visitors 5. 15,5 visitors. 15, visitors 7.,5 visitors. 1,5 visitors; median: no; mode: no Chapter 13 Test A Graphs and Statistics 1. ; 5; 1; 7. Population Genesco 3 Lima Town Number Housing 5% Avon 1 Livonia June July Aug. Sept. Month CDs singes. 5 singers singers. 11 people 5. Sopranos and Altos or Basses and Tenors. Tenors 17 Practice Histograms 1. 7 students. 1-9 students. 7 pets pounds. 7 pets Housing 3% 9 3 sco Lima von onia A ne Liv Ge Town 171 Math in Your Life Making a Budget Garcia s Monthly Budget Population Number of Residents (thousands) 19 Practice Circle Graphs Utilities 1% Tapes Cars 13% Number of Residents (thousands). 7 students 5. students. mean: 5; median: 5; mode: 7. mean: ; median: 5; mode: 17, Food % Recreation 1% Other 9% Savings % Pacemaker Interactive Classroom Resources CD-ROM for Basic Mathematics Answer

18 Answer 17 Chapter 13 Test B Graphs and Statistics Town 1. 3 symbols; 9 symbols; symbols; symbols. Leeds Mansfield Northville Derry 1 Number of Residents (thousands) Number of Residents (thousands) 9 3 s e rry eld ill ed Le nsfi rthv De Ma No Town. 3 students 5. 1 students. mean: ; median: ; mode: 3 7. mean: 3; median: 3; mode: 3, Pacemaker Interactive Classroom Resources CD-ROM for Basic Mathematics Answer