Name Class Date. Jeans Sales Average Price ($) Number Sold

Transcription

1 Name Class Date Practice 14-2 Constructing a Scatterplot 14-2 Constructing a Scatterplot 1. The table shows the average price of a pair of jeans and the number of pairs of jeans sold. Which scatter plot represents the data? Jeans Sales Average Price ($) Number Sold The table shows the year and the average price for one gallon of gasoline at a certain gas station. Which scatter plot represents the data? Gasoline Prices Year Price ($) Practice Homework G

2 3. The table shows the day of the month and the number of cars in Parking Lot Which scatter plot represents the data? Parking Lot A Day of the Month Number of Cars The table shows the number of people and the total cost of their movie tickets at various movie theaters. Which scatter plot represents data? Theater Prices Number of People Total Cost ($) Practice Homework G

3 5. The table shows the hour of the day and the number of people at a park in the morning. Which scatter plot represents the data? Park Attendance Hour Number of People The table shows the body length and weight of some male honey badgers. Which scatter plot represents the data? Honey Badger Length (in.) Weight (lb) Practice Homework G

4 7. Writing The table shows the number of reported rainstorms in two different regions of a country. Rainstorms Region A Region B a) Which scatter plot represents the data? b) Explain how a scatter plot shows the relationship between the data points. 8. Reasoning The table shows the total yearly revenue for a company in billions of dollars. Total Revenue Year Billions of Dollars a) Which scatter plot represents the data? b) What characteristics of a data set should you consider in making a scatter plot? Practice Homework G

5 9. Error Analysis The table shows the number of painters and sculptors enrolled in various art schools. Jashar makes the scatter plot to represent the data. Enrollment Number of Painters Number of Sculptors a) Which scatter plot represents the data? b) What was Jashar s likely error? He used an incorrect scale. He switched the axes labels. He plotted the points incorrectly. He assigned labels incorrectly. Practice Homework G

6 10. Racing The table shows the racing times, in minutes, for the first two laps in a race. Which scatter plot represents the data? Racing Times Lap Lap The table shows the time spent studying, in hours, and the test scores for two students. Student A Time Score Student B Time Score a) Which scatter plot represents the data for Student A? Practice Homework G

7 b) Which scatter plot represents the data for Student B? c) What are the similarities between the scatter plots? What are the differences? 12. The table shows the age and the value of some compact cars. Compact Cars Age (Years) Value ($) 8,000 4, ,000 1,000 14,000 6,000 4,000 9,000 12,000 a) Which scatter plot represents the data? b) Do you see a pattern in the scatter plot? Practice Homework G

8 13. The table shows the height and grade point average (GPA) for the students in a class. Which scatter plot represents the data? Student Data Height (in.) GPA Height (in.) GPA Challenge The table shows the number of gallons of milk that a family drinks each day for 7 days. Suppose the family drinks a total of 2 gallons of milk each week. Make a scatter plot to represent the number of gallons of milk the family drinks each day and the percent of the weekly total. Which scatter plot represents the data? Gallons of Milk Day Monday Tuesday Wednesday Thursday Friday Saturday Sunday Number of Gallons Practice Homework G

9 15. Challenge The table shows the population, in millions, and the area, in square miles, for some cities. City Data Population Area Population Area a) Which scatter plot represents the data? b) You would like to move to the city where you could potentially purchase the most land. What is the population and area of the city you should choose? Explain your choice. Practice Homework G

10 ANSWER KEY Practice 14-2: Constructing a Scatterplot 1. C 2. D 3. A 4. D 5. C 6. A 7. a) D b) Answers will vary 8. a) D b) Answers will vary 9. a) C b) B 10. D 11. a) B b) A c) Answers will vary 12. a) A b) Answers will vary 13. B 14. B 15. a) C b) Answers will vary Practice Answer Key G