Statistics > Questions and Answers > Solved Jason is collecting data on the number of books (CLASS 8 WK1)

Solved Jason is collecting data on the number of books (CLASS 8 WK1)

Jason is collecting data on the number of books students read each year. What type of data is this? discrete quantitative The number of books students read each year is discrete quantitative data because it is obtained by counting. Which of the following is the independent variable in an experi ... ment? explanatory variable An explanatory variable is defined as the independent variable in an experiment. Patrick is collecting data on shoe size. What type of data is this? discrete quantitative Shoe size is discrete quantitative data because it only takes on certain values, such as 5, 5.5, 6, 6.5, etc. An explanatory variable is a value or component of the independent variable applied in an experiment. False An explanatory variable is defined as the independent variable in an experiment. The value or component of the independent variable applied in an experiment is called the treatment. A market researcher surveys households to ask what brand of shampoo is preferred. What is the level of measurement of the data? Nominal This is nominal data because the brands of shampoo do not have an order to them. Even though a person may have a personal preference, there is no ranking that is universal. A track runner keeps track of how long it takes her to run the 200 meter dash. What is the level of measurement of the data? This is ratio data because length of time has a true zero, and ratios are meaningful. If someone took twice as long to run the 200 meters, then that person ran half as fast. A response variable is a variable that has an effect on a study even though it is neither an independent nor a dependent variable. False [Show More]