MATH 302 QUIZ 1 SET 2 (Questions and Answers)
Question 1 of 20
1.0/ 1.0 Points
An advertisement for a car states that it is 10% more powerful than its competitor. This is an example of
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A. detached statistic
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MATH 302 QUIZ 1 SET 2 (Questions and Answers)
Question 1 of 20
1.0/ 1.0 Points
An advertisement for a car states that it is 10% more powerful than its competitor. This is an example of
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A. detached statistics
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B. suspect samples
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C. changing the subject
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D. ambiguous averages
Answer Key: A
Question 2 of 20
0.0/ 1.0 Points
A scatterplot allows one to see:
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A. whether there is any relationship between two variables
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B. what type of relationship there is between two variables
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C. Both (a) and (b) are correct
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D. Neither (a) nor (b) is correct
Answer Key: C
Question 3 of 20
1.0/ 1.0 Points
Which of the following are the two most commonly used measures of variability?
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A. Variance and standard deviation
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B. Variance and median
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C. Mean and variance
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D. Range and interquartile range
Answer Key: A
Question 4 of 20
1.0/ 1.0 Points
A histogram that has a single peak and looks approximately the same to the left and right of the peak is called:
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A. balanced
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B. bimodal
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C. symmetric
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D. proportional
Answer Key: C
Question 5 of 20
1.0/ 1.0 Points
What kind of relationship between x and y is demonstrated by the scatter plot below?
A. This is not a scatter plot
B. A positive linear relationship
C. A negative linear relationship
D. No linear relationship
Answer Key: C
Question 6 of 20
1.0/ 1.0 Points
Which of the following statements is true regarding the data set 10, 10, 10, 10, and 10?
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A. The range is zero
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B. The standard deviation equals zero
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C. The interquartile range equals zero
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D. all of the above
Answer Key: D
Question 7 of 20
1.0/ 1.0 Points
Which of the following statements is true for the following data values: 7, 5, 6, 4, 7, 8, and 12?
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A. The mean, median and mode are all equal
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B. Only the mean and mode are equal
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C. Only the mean and median are equal
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D. Only the median and mode are equal
Answer Key: A
Question 8 of 20
1.0/ 1.0 Points
Researchers may gain insight into the characteristics of a population by examining a
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