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MATH225 Week 1 Assignment : Variables and Measures of Data
(Q & A)
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?
Select the correct answer below: 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? Select the correct answer below:
nominal ordinal interval ratio
14. Given that Ruth is collecting data on political party preference, what type of data is she working with? Select the correct answer below: qualitative data discrete quantitative data continuous quantitative data none of the above
- Janice is investigating if grade level has any effect on time spent studying. What is the explanatory variable? Select the correct answer below: time spent studying grade level the number of people that are being studied none of the above 16. A restaurant surveys its patrons to find their favorite item on the menu. What is the level of measurement of the data? Select the correct answer below: nominal ordinal interval ratio 17. Which of the following is the independent variable in an experiment? Select the correct answer below: lurking variable explanatory variable
response variable treatment
18. Angela is collecting data on the number of classes that students take. What type of data is this? Select the correct answer below: qualitative data discrete quantitative data continuous quantitative data none of the above 19. A pollster surveys voters and asks which candidate they support in the upcoming election. What is the level of measurement of the data? Yes that's right. Keep it up! nominal ordinal interval ratio 20. Given that Janet is collecting data on favorite sports teams, what type of data is she working with? Select the correct answer below: qualitative data discrete quantitative data continuous quantitative data none of the above 21. To determine whether or not grade level influences time spent studying, Samuel has designed a survey. What is the response variable? Select the correct answer below: grade level time spent studying the number of people surveyed none of the above 22. A chef keeps track of the temperature of his refrigerator in degrees Celsius. What is the level of measurement of the data?
27. Given that Angelina is collecting data on commute distance, what type of data is she working with? Select the correct answer below: qualitative data discrete quantitative data continuous quantitative data none of the above 28. A restaurant asks its patrons to rate the speed of the service. The options are Very Slow, Somewhat Slow, Somewhat Fast, Very Fast. What is the level of measurement of the data? Select the correct answer below: nominal ordinal interval ratio 29. Edward has created an experiment to test whether or not height has any effect on red blood cell count. Which of the following gives the explanatory and response variables, respectively, in this situation? Select the correct answer below: height and red blood cell count red blood cell count and height the number of people in the experiment and red blood cell count the number of people in the experiment and height 30. What type of data is collected if Maria is studying eye color? Select the correct answer below: qualitative data discrete quantitative data continuous quantitative data none of the above
