Mathematics > EXAM > MATH 302 QUIZ 1 SET 2 (Questions and Answers) (All)
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 • ... A. detached statistics • B. suspect samples • C. changing the subject • D. ambiguous averages Answer Key: A Question 2 of 20 0.0/ 1.0 Points A scatterplot allows one to see: • A. whether there is any relationship between two variables • B. what type of relationship there is between two variables • C. Both (a) and (b) are correct • 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? • A. Variance and standard deviation • B. Variance and median • C. Mean and variance • 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: • A. balanced • B. bimodal • C. symmetric • 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? • A. The range is zero • B. The standard deviation equals zero • C. The interquartile range equals zero • 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? • A. The mean, median and mode are all equal • B. Only the mean and mode are equal • C. Only the mean and median are equal • 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 .........continued [Show More]
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