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# NMTA Math: Statistics Overview Chapter Exam

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "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. Good luck!

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#### Question 1 1. Which of the following answers is an example of discrete data?

#### Question 2 2. Which of the following statements is NOT quantitative data?

#### Question 3 3. In statistics, a sample:

#### Question 4 4. What are all members of a specified group?

#### Question 5 5. 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.

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#### Question 6 6. What is statistical estimation?

#### Question 7 7. 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 8 8. The numbers on lacrosse jerseys are an example of _____ data.

#### Question 9 9. Which of the following answers is an example of continuous data?

#### Question 10 10. What is data that cannot be divided, it is distinct and can only occur in certain values?

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#### Question 11 11. 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?

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Question 12
12.
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 13 13. How do descriptive and inferential statistics differ?

#### Question 14 14. What is data that is collected in groups or topics, where the number of events in each group is counted numerically?

#### Question 15 15. Alyssa wants to support a hypothesis of causation between how much a child has been read to before the age of 5 and their IQ level. She wants to collect data by conducting a survey of parents of grade school students and comparing it to the reported IQ levels of the students. Which type of study and variables does she need to use?

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#### Question 16 16. 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.

#### Question 17 17. Why might a researcher use a sample rather than an entire population for their study?

#### Question 18 18. One trick to finding out if information is categorical or quantitative is to analyze the answer to the question. Which of the following is TRUE:

#### Question 19 19. Select the statement that represents discrete quantitative data.

#### Question 20 20. What do we call a part of a population used to describe the whole group?

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#### Question 21 21. 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 22 22. 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 23 23. 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 24 24. 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 25 25. What are the characteristics of a sample used to infer information about the population?

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#### Question 26 26. What is data that can be measured and ordered?

#### Question 27 27. What are two examples of inferential statistics?

#### Question 28 28. What is categorical data that assigns numerical values as an attribute to an object, animal, person or any other non-number?

#### Question 29 29. A coach records the levels of ability in martial arts of various kids. What type of data is this?

#### Question 30 30. What is information that is collected for analysis?

#### NMTA Math: Statistics Overview Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "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. Good luck!