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QUESTION:

At the beginning of the semester, an Intro to Statistics instructor asked the 225 students enrolled in the class to complete a survey. For each student, the instructor collects information about the following:

Sport (Favorite sport: Football, Baseball, Basketball, Hockey, Other)

Exercise (How many minutes do you spend exercising per week)

Personality (on a 0-25 scale, how would you describe your personality 0=total introvert, 25=total extrovert)

Death penalty (Strongly agree, Agree, Neutral, Disagree, Strongly Disagree)

Question 1 of 6

Question 1

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What are the individuals in this example?

Question 2 of 6

Question 2

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How many variables are in this example?

Question 3 of 6

Question 3

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Which of the variables above is ordinal?

Question 4 of 6

Question 4

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What kind of variable is Personality?

Question 5 of 6

Question 5

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What kind of variable is Sport?


Question 6 of 6

Question 6

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Which of the following variables is not a ratio variable?









ANSWER:

Question 1 of 6

The students enrolled in Intro to Statistics

Correct. Individuals are the people/objects that information is collected on. Therefore, in this case, the individuals are the 225 students enrolled in the Intro to Statistics course.

Question 2 of 6

4

Correct. The variables are the characteristics/pieces of information that are collected on the individuals. In this case, there are therefore 4 variables: Sport, Exercise, Personality, and Death penalty.

Question 3 of 6

Death penalty

Correct. In this example, Death penalty is an ordinal variable since the possible values are naturally ordered from strong agreement to strong disagreement.

Question 4 of 6

Interval

Correct. Personality is an interval variable since the value of 0 does not mean “no personality” but rather it means total introvert.


Question 5 of 6

Nominal

Correct. Sport is a categorical variable where the possible values do not have a natural order and therefore it is nominal.


Question 6 of 6

Temperature (Outside temperature)

Temperature is an interval variable. Temperature = 0 does not mean that “there is no temperature” (in fact, there is no such thing). Temperature = 0 means that it is very cold that day.

Posted by Cleveland on September 19, 2024
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