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Data Analysis Lessons 97-98. Use the data from the graph, chart, or table to draw conclusions, make inferences, and identify trends. Lessons 97-98 Guided Practice.
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Data AnalysisLessons 97-98 Use the data from the graph, chart, or table to draw conclusions, make inferences, and identify trends.
Lessons 97-98 Guided Practice A study of sports based on young adult responses to the question: “What sport(s) did you continue to participate in after high school or college?” The data is given in the bar graph below. Number of people Sport
Lessons 97-98 Guided Practice • 1. Which statement can be concluded based on the data in the graph? • Less than half of the young adults continued to play some type of sport. • These sports are recreation sports only. • The reason more young adults take up running is to stay in shape. • The number of young adults who continue to play some type of football or basketball is less than the number of young adults who run. Answer: D Number of people Sport
Lessons 97-98 Guided Practice • 2. Which statement CANNOT be concluded from the data? • Young adults could have responded to more than one sport in the survey. • The number of young adults who run is twice the number of young adults who play basketball. • The number of young adults who continue to play softball or baseball is greater than twice the number of young adults who continue to play football. • The number of young adults who continue to do gymnastics is 1/3 the number of young adults who play golf. Answer: C Number of people Sport
Lessons 97-98 Guided Practice • What error was made in finding the total number of sports played by • young adults was 170 rather than the exact total of 150? • I added up the values and rounded the answer to the nearest 10. • I found the mean for all sports and multiplied it by 6 because there were 6 sports. • I rounded each number down to the nearest down to the nearest 10 and added the values. • I rounded each number to the nearest 10 and then added the values. Answer: D Number of people
USA Today Cellphones
2005 • 1109 • 1926 • 3313 a.
45% • 78% • 91% • 8% a.
3. If 100 students attend your school, how many students would you expect to say have “more than one” cell phone? • 19 • 45 • 55 • 81
USA Today Population of Washington D.C.
1. According to the USA TODAY Snapshot™ “Leaving D.C.,” the population in the District of Columbia was 571,045 in 2000 and 553,523 in 2004. How did the population change over time? • Increased by 17,522 • Decreased by 17,522 people • Increased by 1,124,568 • Decreased by 23,425
2. What conclusion can you not make from the pictograph from the trend of the data? • The population decreased in 2005. • The population decreased more from 2003-2004 than it did from 2001-2002. • The population decreased more from 2002-03 than 2000-01. • The population stayed the same in 2000 and 2003
3. According to the USA TODAY Snapshot™ “Leaving D.C.,” the population in the District of Columbia was 571,045 in 2000 and 553,523 in 2004. How did the population change over time? • Increased by 17,522 • Decreased by 17,522 people • Increased by 1,124,568 • Decreased by 23,425
Favorite Fruit • What type of graph is this? • Line • Pictograph • Bar • Venn diagram
Favorite Fruit • 2. Which of these would be the label for the x-axis? • Type of fruit • Number of students surveyed • Pear • Favorite Fruit at Tomahawk Elementary
Favorite Fruit • 3. Which two fruits are most favored by students? • Apple and kiwi • Peach and mango • Pear and apple • Orange and mango
What flavor did only 10% of students list as their favorite? • Orange • Peach • Watermelon • cherry
2. Which flavor did half as many students list as their favorite compared to cherry? • grape • chocolate • cinnamon • butterscotch
3. What flavor was the least favorite? • grape • cherry • watermelon • butterscotch
Birthday Party Games • How many balloons were popped at the party? • 60 • 92 • 88 • 82
Birthday Party Games • 2. Who popped twice as many balloons as JoAnn? • Sarah • Monica • Nicole • Linda
Birthday Party Games • 3. Together, who popped a total of 40 balloons? • Sarah and Monica • Monica and Nicole • Nicole and JoAnn • Linda and Nicole
Ferry Schedule of All Cars That Crossed To Treasure Island • How many cars traveled to Treasure Island by the 9:00 departure? • 58 • 48 • 75 • 172
Ferry Schedule of All Cars That Crossed To Treasure Island • 2. How many cars in all traveled to Treasure Island? • 162 • 182 • 168 • 172
Ferry Schedule of All Cars That Crossed To Treasure Island • 3. How many cars traveled to Treasure Island before 11:00? • 172 • 147 • 103 • 92