MATH 225N Week 1 Assignment: Variables and Measures of Data Questions and Answers.
1. Which of the following best describes the term explanatory
... [Show More] variable?
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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?
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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?
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nominal
ordinal
interval
ratio
4. Margaret is investigating if gender has any effect on political party associations. What is the response variable?
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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?
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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?
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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?
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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?
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nominal
ordinal
interval
ratio
9. A response variable is the dependent variable in an experiment.
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True
False
10. Discrete data is the type of quantitative data that is the result of counting.
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True
False
11. A political researcher asks people if they Strongly Disagree, Disagree, Agree, or Strongly Agree with various policy decisions. What is the level of measurement of the data?
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nominal
ordinal
interval
ratio
12. Which of the following best describes the term response variable?
________________________________________
Select the correct answer below:
________________________________________
the independent variable in an experiment
a variable that has an effect on a study even though it is neither an independent nor a dependent variable
the dependent variable in an experiment
a value or component of the independent variable applied in an experiment
13. A climate scientist keeps track of the daily temperature, in degrees Fahrenheit, of a lake over the course of six weeks. What is the level of measurement of the data?
________________________________________
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nominal
ordinal
interval
ratio
14. Given that Ruth is collecting data on political party preference, what type of data is she working with?
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qualitative data
discrete quantitative data
continuous quantitative data
none of the above
15. Janice is investigating if grade level has any effect on time spent studying. What is the explanatory variable?
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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?
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nominal
ordinal
interval
ratio
17. Which of the following is the independent variable in an experiment?
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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?
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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?
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Yes that's right. Keep it up!
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nominal
ordinal
interval
ratio
20. Given that Janet is collecting data on favorite sports teams, what type of data is she working with?
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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?
________________________________________
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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?
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nominal
ordinal
interval
ratio
23. What term best describes data that is an attribute whose value is indicated by a label?
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discrete
quantitative
statistic
qualitative
24. Karen is investigating if age has any effect on political party preferences. What is the explanatory variable?
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the number of people that are being studied
age
political party preferences
none of the above
25. A market researcher surveys households to ask what brand of shampoo is preferred. What is the level of measurement of the data?
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nominal
ordinal
interval
ratio
26. Thomas is investigating if gender has any effect on political party associations. Which of the following gives the explanatory and response variables respectively?
the number of people that are being studied and political party associations
the number of people that are being studied and gender
gender and political party associations
political party associations and gender
27. Given that Angelina is collecting data on commute distance, what type of data is she working with?
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Select the correct answer below:
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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?
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Select the correct answer below:
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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?
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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?
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qualitative data
discrete quantitative data
continuous quantitative data
none of the above [Show Less]