This quiz works best with JavaScript enabled. Home > Ugc Net > Paper 1 > Research Stats > Measures Of Center And Spread – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Measures Of Center And Spread Quiz 2 (17 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How do you find the Interquartile Range or IQR? A) Median. B) Q3-Q1. C) Maximum-Minimum. D) Q1-Q3. Show Answer Correct Answer: B) Q3-Q1. 2. The ..... is the midpoint of the data. A) Median. B) Mean. C) Mode. D) Standard deviation. Show Answer Correct Answer: A) Median. 3. When a distribution is skewed, which measures of center and spread are most reliable? A) Mean and standard deviation. B) Mean and IQR. C) Median and standard deviation. D) Median and IQR. Show Answer Correct Answer: D) Median and IQR. 4. For the data given here what is the range:15, 17, 19, 15, 13, 14, 10, 21, 18, 19, 19 A) 19. B) 11. C) 21. D) 10. Show Answer Correct Answer: B) 11. 5. This is a list of the number of text messages 5 friends sent last week:13, 60, 61, 63, 64. The most approximate measure of center for the data is the- A) Mean because all numbers are close to each other in value. B) Median because all numbers are close to each other in value. C) Mean because 13 text messages is much lower than the other numbers. D) Median because 13 text messages is much lower than the other numbers. Show Answer Correct Answer: D) Median because 13 text messages is much lower than the other numbers. 6. What is the median of the data set below?45, 57, 41, 67, 33, 43 A) 41. B) 67. C) 44. D) 54. Show Answer Correct Answer: C) 44. 7. Taylor recorded the running times for her track team. She noticed that a few runners were much faster than the others, and no recorded time was repeated, in the 100-meter dash. The track coach asked Taylor to determine the best measure of center. Which should she use? A) Range. B) Mean. C) Mode. D) Median. Show Answer Correct Answer: D) Median. 8. , 31, 37, 46, 29, 38What is the Q3 of the data? A) 46. B) 38. C) 42. D) 37. Show Answer Correct Answer: B) 38. 9. Which of these is the difference between the highest and lowest values in a data set? A) Median. B) Standard deviation. C) Range. D) None of above. Show Answer Correct Answer: C) Range. 10. What measure of center was most affected by the outlier? A) Range. B) Mean. C) Median. D) Mode. Show Answer Correct Answer: B) Mean. 11. The cost of five homes in a certain area is given.$ 147, 000$ 155, 000$ 175, 000$ 145, 000$ 1, 225, 000Which measure of central tendency should be used? A) Median. B) Midrange. C) Mode. D) Mean. Show Answer Correct Answer: A) Median. 12. The numbers of runs scored by a softball team in 20 games are given. 3, 4, 8, 12, 7, 5, 4, 12, 3, 9, 11, 4, 14, 8, 2, 10, 3, 10, 9, 7What is the Interquartile Range. A) IQR = 10. B) IQR = 7.5. C) IQR = 6. D) IQR = 12. Show Answer Correct Answer: C) IQR = 6. 13. What is the median of the data set below?42, 51, 32, 46, 50, 55 A) 48. B) 42. C) 46. D) 44. Show Answer Correct Answer: A) 48. 14. The time in minutes for Sam's phone calls this week is listed below(9, 15, 5, 7, 9, 12, 11, 4)Which statement is true about the duration of his calls? A) The mode is greater than 7. B) The median is greater than 10. C) The mean is less than 8. D) The range is less than 10. Show Answer Correct Answer: A) The mode is greater than 7. 15. Use the 1.5 IQR rule to determine if there are any outliers for the following numbers:84, 88, 72, 74, 98, 16, 94 A) Yes, 16 is an outlier. B) Yes, 33 is an outlier. C) There are no numbers less than 39 or greater than 124, therefore there are no outliers. D) Yes, 98 is an outlier. Show Answer Correct Answer: A) Yes, 16 is an outlier. 16. The scores on a statistics exam had a mean of 81 and a standard deviation of 9. One student was absent on the test day, and his score wasn't included in the calculation. If his score of 84 is added to the distribution of scores, what would happen to the mean and standard deviation? A) Mean will increase, standard deviation will increase. B) Mean will increase, standard deviation will decrease. C) Mean will increase, standard deviation will stay the same. D) Mean will decrease, standard will decrease. Show Answer Correct Answer: B) Mean will increase, standard deviation will decrease. 17. The following data represents the number of students in 6th grade math classes. Which measure of center best describes the data? 50, 25, 22, 21, 17 A) Range. B) Mode. C) Mean. D) Median. Show Answer Correct Answer: D) Median. ← PreviousRelated QuizzesPaper 1 QuizzesUgc Net QuizzesMeasures Of Center And Spread Quiz 1Analysis Of Variance QuizChi Square QuizCoefficient Of Variation Discrete Serious And Continuous Serious QuizConcept Of Point And Interval Estimation QuizConcept Of Sampling And Other Concepts Related To Sampling QuizConfidence Intervals QuizCorrelation Coefficient Coefficient Of Determination Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books