Quiz 1.1A AP Statistics

Below is some information about films for the ―Best Movie‖ Academy Award (Oscar) in 2009. Name Genre Budget (millions of dollars) Total # of Oscar Nominations Running time (minutes) MMPA Rating Avatar Adventure 237 9 162 PG-13 The Blind Side Drama 29 2 128 PG-13 District 9 Action 30 4 112 R An Education Drama 7 3 95 PG-13 The Hurt Locker Action 11 9 131 R Inglourious Basterds Drama 70 8 153 R Precious Drama 10 6 110 R A Serious Man Comedy 7 2 106 R Up Animated 175 5 96 PG Up in The Air Comedy 30 6 109 R 1. What are the individuals in this data set? 2. Identify the variables that were recorded, and indicate whether each one is categorical or quantitative. 3. Here is a pie chart for the distribution of the variable ―MMPA rating.‖ Fill in the blanks with the appropriate values of the variable. 4. Below is a graph showing the total number of Oscar nominations for the four films that had PG or PG-13 ratings. What’s wrong with the way the information is presented in this graph? _________ _________ _________ 5 10 Avatar Up An Education The Blind Side Number of nominations © 2011 BFW Publishers The Practice of Statistics, 4/e- Chapter 1 11 Researchers looking at the relationship between the type of college attended (public or private) and achievement gather the following data on 3265 people who graduated from college in the same year. The variable ―management level‖ describes their job description 20 years after graduating from college. Type of College Public Private High 75 107 Management level Medium 962 794 Low 732 595 5. Calculate the marginal distribution of management level in percents. 6. Find the conditional distribution of management level for each college type, in percents. 7. Sketch a segmented bar graph for the two conditional distributions in 6. 8. Write a brief description of what the information in 6. and 7. tell you about the relationship between these variables. 12 The Practice of Statistics, 4/e- Chapter 1 © 2011 BFW Publishers Quiz 1.1B AP Statistics Name: Below is some information about the first ten United States Presidents. Name Political Party Age at Inauguration Age at Death State of Birth George Washington Federalist 57 67 Virginia John Adams Federalist 61 90 Massachusetts Thomas Jefferson Democratic-Republican 57 83 Virginia James Madison Democratic-Republican 57 85 Virginia James Monroe Democratic-Republican 58 73 Virginia John Quincy Adams Democratic-Republican 57 80 Massachusetts Andrew Jackson Democrat 61 78 South Carolina Martin Van Buren Democrat 54 79 New York William H. Harrison Whig 68 68 Virginia John Tyler Whig 51 71 Virginia 1. What are the individuals in this data set? 2. Identify the variables that were recorded, and indicate whether each one is categorical or quantitative. 3. Here is a pie chart for the distribution of the variable ―State of birth.‖ Fill in the blanks with the appropriate values of the variable. 4. Below is a bar graph of the number of presidents of each political party. What is wrong with the way information is presented in this graph? ______________ _____________ ______________ ______________ Whig Democrat Democratic-Republican Federalist 432 Political Party Number of Presidents © 2011 BFW Publishers The Practice of Statistics, 4/e- Chapter 1 13 You suspect that there is a relationship between teenagers’ preference in movies and their preference in pizza. You ask 110 students at your school to choose between three movies and three pizza types. Here are your results. 5. Calculate the marginal distribution of movie preference in percents. 6. Find the conditional distribution of pizza preference for each movie preference, in percents. 7. Sketch a segmented bar graph for the three conditional distributions in 6. 8. Write a brief description of what the conditional distributions in 6. and 7. tell you about the relationship between these variables.