Official AP Statistics 2024 International Paper Preview | AP Practice with MCQs

Question 1: A machine at a large factory fills bottles with juice. To reduce the likelihood of bottles containing less than 8 ounces (oz) of juice, the machine is set to fill the bottles with a mean of 8.05 oz of juice. To investigate whether the machine is working properly, the factory manager randomly samples ten bottles every 24 hours and records data for several variables from each of the sampled bottles.

Which of the following is classified as a continuous quantitative variable for the factory manager's investigation?

Question 1: Dexterity is a skill in performing tasks. A researcher studying hand dexterity in professional musicians wants to determine if there is a difference in hand dexterity between piano players and flute players. The researcher knows there are thousands of each type of musician. The researcher randomly selected 25 professional piano players and randomly selected 25 professional flute players to participate in a study. Each sampled musician completed a hand dexterity task and was given a dexterity score on a scale of 1 to 30. A score of 1 represents minimum dexterity, and a score of 30 represents maximum dexterity. The histograms and the table display the researcher's results.