Exam (elaborations) MATH 225N MATH

1. Which of the following best describes the term explanatory variable? Select the correct answer below: the dependent variable in an experiment a value or component of the independent variable applied in an experiment a variable that has an effect on a study even though it is neither an independent nor a dependent variable the independent variable in an experiment 2. Which of the following best describes the term qualitative? Select the correct answer below: a numerical characteristic of the sample the type of data that is the result of measuring the type of data that is the result of counting an attribute whose value is indicated by a label 3. A zoologist measures the birthweight of each cub in a litter of lions. What is the level of measurement of the data? Select the correct answer below: nominal ordinal interval ratio 4. Margaret is investigating if gender has any effect on political party associations. What is the response variable? SelTehciststtuhdyesocuorcrerweacs dtoawnnlosawdeed bryb10e0l0o00w81: from CourseH on :53:19 GMT -05:00 political party associations gender the number of people that are being studied none of the above 5. Timothy is collecting data on number of dental cavities. What type of data is this? Select the correct answer below: qualitative data discrete quantitative data continuous quantitative data none of the above 6. To determine whether or not number of siblings influences grade point average, Charles has designed a survey. What is the explanatory variable? Select the correct answer below: number of siblings grade point average the number of people surveyed none of the above 7. What is the type of quantitative data that is the result of measuring? Select the correct answer below: qualitative statistic discrete continuous 8. A new mother keeps track of the time when her baby wakes up each morning. What is the level of measurement of the data? .......................................CONTINUED......................................