# DSST Principles of Statistics: Study Guide & Test Prep Final Exam

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#### Question 1 1. Which of the following statements is NOT quantitative data?

#### Question 2 2. Charlotte is part of her local track team. She can jump 4 hurdles and can long jump 5 feet 5 inches. There are seven girls and ten boys on her track team. Six of the team members are ranked among the top 10 regional athletes. Which piece of this data is discrete and which is continuous?

#### Question 3 3. The _____ is a condition or piece of data in an experiment that is controlled or influenced by an outside factor, most often the independent variable?

#### Question 4 4. Sheila is a baker experimenting with a cake recipe. Specifically, she is monitoring how changes in the volume of cream affect the moistness of the cake. What kind of variable is the volume of cream, and why?

#### Question 5 5. Analyze the following statements and indicate which one best describes the difference between the population and the sample.

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#### Question 6 6. David wants to collect information about his friends and how many siblings they each have. David has eight friends. How should he collect this data? Why?

#### Question 7 7. How do descriptive and inferential statistics differ?

#### Question 8 8. What are the characteristics used to describe a population?

#### Question 9 9. Variables are collected in the form of data. What are the two major forms of data?

#### Question 10 10. Which of the following answers is an example of discrete data?

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#### Question 11 11. Which of the following answers is an example of continuous data?

#### Question 12 12. Madison and Charlotte are having a competition, seeing how long they can each hold a note on their flutes. Meanwhile, Charlotte wants to know how many notes Madison can produce accurately on her flute. Are these pieces of data discrete or continuous?

#### Question 13 13. What is data that is grouped in evenly distributed values and measured based on the group to which the variable is attributed?

#### Question 14 14. Marco is conducting an experiment on training certain breeds of dogs. He wants to know how long, on average, it would take to teach a Labrador to fetch an object. He gets a group of dogs to conduct his experiment. 5 of the dogs are Labradors and 3 of the dogs are Dalmatians. What is the population and sample in this experiment?

#### Question 15 15. What do we call a part of a population used to describe the whole group?

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#### Question 16 16. The numbers on lacrosse jerseys are an example of _____ data.

#### Question 17 17. Why do different types of statistical models exist?

#### Question 18 18. What is data that can be ordered and ranked, but not measured?

#### Question 19 19. Julie wants to understand the growth rates of children in kindergarten. She asks a local elementary school for their help, and she takes the measurements of 45 kindergartners throughout the year. She finds that the children grow at a rate of 2-4 inches over the year, while the national research shows that children of that age grow at a rate of 2-3 inches per year. Identify the population, sample, statistic, and parameter in this scenario.

#### Question 20 20. What is statistical estimation?

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#### Question 21 21. What is a mathematical comparison between two numbers?

#### Question 22 22. A coach records the levels of ability in martial arts of various kids. What type of data is this?

#### Question 23 23. In statistics, a sample:

#### Question 24 24. What are all members of a specified group?

#### Question 25 25. Why might a researcher use a sample rather than an entire population for their study?

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#### Question 26 26. Select the statement that represents discrete quantitative data.

#### Question 27 27. Which two are examples of descriptive statistics?

#### Question 28 28. Brown school has decided to review their ratio of girls to boys in the Second grade class. They decided to count the number of boys in Second grade. This is an example of what type of data?

#### Question 29 29. What is categorical data that assigns numerical values as an attribute to an object, animal, person or any other non-number?

#### Question 30 30. Bob proposed that the more you exercise, the more likely you are to be promoted at your job. He reviewed the exercise regimens of coworkers who were promoted and those that were not. In this example, exercise is a(n) _____ variable, and job status is a(n)_____ variable.

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#### Question 31 31. Elizabeth is waiting for her flight at the airport. She decides to conduct an experiment. She wants to know how many people at the airport carry a laptop with them for their flight. She sees 50 people walk past her as she waits. Thirty of those people are carrying laptops. What is the population and sample in this scenario?

#### Question 32 32. What is information that is collected for analysis?

#### Question 33 33. Jim is studying how differences in the the screen color of electronic devices make an impact on eye strain experienced by the user. In these experiments, which is the response variable and which is the explanatory variable.

#### Question 34 34. What is data that can be measured and ordered?

#### Question 35 35. What are two examples of inferential statistics?

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#### Question 36 36. What is data that can be divided infinitely?

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Question 37
37.
Katie is collecting data about the number of people that are interested in different dance styles. After passing out a survey, she has gathered the following information:

Style / Number of people interested in this style

Ballet / 20

Jazz /12

Hip Hop / 8

Lyrical / 26

Tap / 10

What type of data did Katie collect?

#### Question 38 38. What is data that cannot be divided, it is distinct and can only occur in certain values?

#### Question 39 39. Sandra is selling her new line of all natural make-up products and wants to know the popularity of certain colors among teenagers. She hands out a survey to all of the students in her teenager daughter's class and asks them to identify their favorite make up colors. Which is the population and which is the sample in this scenario?

#### Question 40 40. Alyssa wants to determine whether or not there is a correlation between reading to children and their IQ level. Which type of study and variables does she need to use?

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#### Question 41 41. In a study, a group of mice are given an injection of a drug proposed to shrink lung tumors. After one month, the tumors are measured. This is an example of a(n) _____ study.

#### Question 42 42. What are the characteristics of a sample used to infer information about the population?

#### Question 43 43. Samantha is gathering information about how many calories the athletes on her team consume during game week. Which answer correctly indicates how the data should be analyzed for both categorical and quantitative research?

#### Question 44 44. Madison is trying out for the track team. There are 26 people trying out for the team. There are 4 people wanting to run distance, 6 people wanting to pole vault, 8 people wanting to sprint, and 2 people that want to throw shot put. Madison can run a half mile in 6 minutes and she finished 6th in the 100 meter dash. Which of these pieces of data is discrete and which is continuous?

#### Question 45 45. In an experimental study, one group was required to water their lawn once a week and another was required to water three times per week. The control group did not water their lawn at all. Watering the lawn is the _____, and the number of times is the _____.

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#### Question 46 46. What is data that is collected in groups or topics, where the number of events in each group is counted numerically?

#### Question 47 47. One trick to finding out if information is categorical or quantitative is to analyze the answer to the question. Each answer choice pairs the answer to the question with categorical or quantitative data. Select the answer selection that is correct.

#### Question 48 48. In a study, a group of mice are put into a maze with multiple paths and options. The time it takes each mouse to complete the maze and the path taken are recorded. This is an example of a(n) _____ study.

#### DSST Principles of Statistics: Study Guide & Test Prep Final Exam Instructions

Choose your answers to the questions and click 'Next' to see the next question. You can skip questions if you would like and come back to them later with the "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. You will lose your work if you close or refresh this page. Good luck!