This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Commerce > Economics Statistics For Economics > Class 11 Economics (Statistics For Economics) Chapter 7 Correlation – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Economics (Statistics For Economics) Chapter 7 Correlation Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is validity? A) The consistency and reproducibility of a given result. B) The accuracy of a given result in measuring what it is designed to measure. C) Seeing relationships between two things when no such relationship exists. D) Two variables change in the same direction. Show Answer Correct Answer: B) The accuracy of a given result in measuring what it is designed to measure. 2. What is negative correlation? A) The consistency and reproducibility of a given result. B) The accuracy of a given result in measuring what it is designed to measure. C) Seeing relationships between two things when no such relationship exists. D) Two variables change in different directions. Show Answer Correct Answer: D) Two variables change in different directions. 3. Attendance & college GPA's have a correlation coefficient of-0.89 ..... this indicates a ..... correlation. A) Weak positive. B) Strong positive. C) Weak negative. D) Strong negative. Show Answer Correct Answer: D) Strong negative. 4. If a scatterplot has no association then ..... A) It has no ordered pairs. B) If it makes a lion on a graph (roar!). C) Its ordered pairs have no predictable pattern. D) It has ordered pairs that have a negative pattern. Show Answer Correct Answer: C) Its ordered pairs have no predictable pattern. 5. Which of the following is the WEAKEST negative correlation? A) 0. B) -.34. C) -.57. D) -.92. Show Answer Correct Answer: B) -.34. 6. Determine whether the following scenario should use a one-way ANOVA test or two-way ANOVA test:A researcher want to determine whether there is an interaction between physical activity level and gender on blood cholesterol concentration in children. A) One-way ANOVA test. B) Two-way ANOVA test. C) All the above. D) None of the above. Show Answer Correct Answer: B) Two-way ANOVA test. 7. Average time spent listening to music per day and average time spent watching TV per day. $r=-.17$ A) Weak positive. B) Strong negative. C) Strong positive. D) Weak negative. Show Answer Correct Answer: D) Weak negative. 8. Which type of correlation most likely represents the relationship between number of hours studied for an exam and the grade on the exam? A) Positive Correlation. B) Negative Correlation. C) No Correlation. D) None of the above. Show Answer Correct Answer: A) Positive Correlation. 9. A perfect positive correlation has a correlation coefficient of ..... A) 1. B) -1. C) 0. D) None of the above. Show Answer Correct Answer: A) 1. 10. What would be the correlation be between study time and test grades? A) Positive Correlation. B) No Correlation. C) Cannot Be Determined. D) Negative Correlation. Show Answer Correct Answer: A) Positive Correlation. 11. DESCRIBE THE LIKELY CORRELATION BETWEEN NUMBER OF TIMES BRUSHING AND LOSSSING ANDNUMBER OF TRIPS OF THE DENTIST A) POSITIVE. B) NEGATIVE. C) NO CORRELATION. D) None of the above. Show Answer Correct Answer: B) NEGATIVE. 12. A researcher finds a correlation coefficient of +2.00 between cigarette smoking and lung cancer. This correlation coefficient indicates a(n) ..... A) Perfect positive relationship. B) Strong positive relationship. C) Weak positive relationship. D) Error in computation. Show Answer Correct Answer: D) Error in computation. 13. A cell phone company charges $ 60.00 a month for up to 1 gigabyte computations. of data. The cost of additional data is $ 0.05 per megabyte. If d represents the number of additional megabytes used and c represents the total charges at the end of the month, which linear equation can be used to determine a user's monthly bill? A) C = 60.05d. B) C = 60 + 0.05d. C) C = 60d-0.05. D) C = 60-0.05d. Show Answer Correct Answer: B) C = 60 + 0.05d. 14. The relationship between x, a student's test scores and y, the student's success in school. Based on this information, what could the relationship between the data? A) As the test scores increase, the student's success increases. B) As the test scores increase, the student's success decreases. C) There is no relationship between test scores and student success. D) None of the above. Show Answer Correct Answer: A) As the test scores increase, the student's success increases. 15. A negative correlation exists on a scatterplot when ..... A) Values of y remain constant as values of x increase. B) Values of y change randomly as values of x increase. C) Values of y increase as values of x increase. D) Values of y decrease as values of x increase. Show Answer Correct Answer: D) Values of y decrease as values of x increase. 16. If two quantities A and B exhibit a negative correlation, then as quantity A increases, quantity B would (a) . A) A. decrease. B) Stay the same. C) Increase. D) None of the above. Show Answer Correct Answer: A) A. decrease. 17. ..... correlation is when there is NO relationship between two sets of data. A) Positive. B) Negative. C) No. D) None of the above. Show Answer Correct Answer: C) No. 18. Determine whether the following scenario should use a one-way ANOVA test or two-way ANOVA test:A group of psychiatric patients are trying three different therapies:counseling, medication and biofeedback. They want to see if one therapy is better than the others. A) One-way ANOVA test. B) Two-way ANOVA test. C) All the above. D) None of the above. Show Answer Correct Answer: A) One-way ANOVA test. 19. The correlation coefficient shows ..... A) The direction. B) The strength. C) Both. D) Neither. Show Answer Correct Answer: C) Both. 20. You collect data on the heights and weights (in inches and pounds, respectively) of male elementary school students, and find that the correlation between height and weight is 0.754. After you convert the heights to centimeters and the weights to kilograms, correlation ..... A) Remains the same. B) Cannot be determined. C) Increases. D) Decreases. Show Answer Correct Answer: A) Remains the same. 21. Which of the following is not a condition that must be checked before you can use correlation? A) The data must come from a random sample. B) Variables must be quantitative. C) The scatterplot must show a linear association. D) The scatterplot cannot show any outliers. Show Answer Correct Answer: A) The data must come from a random sample. 22. Describe the correlation: "The day of the month and the wind speed." A) Positive. B) Negative. C) None. D) None of the above. Show Answer Correct Answer: C) None. 23. Temperature of a rubber band and distance the rubber band can stretch. $r=.84$ A) Weak negative. B) Strong negative. C) Weak positive. D) Strong positive. Show Answer Correct Answer: D) Strong positive. 24. Test scores vs. shoe sizes A) Positive Correlation. B) Negative Correlation. C) No Correlation. D) None of the above. Show Answer Correct Answer: C) No Correlation. 25. Correlation or Causation:the speed you drive and the amount of fuel you use? A) Correlation. B) Causation. C) All the above. D) None of the above. Show Answer Correct Answer: B) Causation. 26. Identify the response variable:Age of students and whether they are allowed to stay up past 11:00PM on a school night. A) Parents' Education Level. B) Bedtime. C) Day of the Week. D) Age of Students. Show Answer Correct Answer: B) Bedtime. 27. Which phrase best represents the relationship between the duration of airline flight in hours and the number of gallons of jet fuel used? A) Correlated, but not causal. B) Causal, but not correlated. C) Both correlated and causal. D) Neither correlated, nor causal. Show Answer Correct Answer: C) Both correlated and causal. 28. Which type of correlation most likely represents the relationship between distance traveled to school and number of shirts owned? A) Positive Correlation. B) Negative Correlation. C) No Correlation. D) None of the above. Show Answer Correct Answer: C) No Correlation. 29. The amount of time since a movie was released and the amount of tickets sold A) Positive Correlation. B) Negative Correlation. C) No Correlation. D) None of the above. Show Answer Correct Answer: B) Negative Correlation. 30. A person's height and a person's age up to adulthood A) Positive Correlation. B) Negative Correlation. C) No Correlation. D) None of the above. Show Answer Correct Answer: A) Positive Correlation. 31. What graph best shows correlation? A) Bar Graph. B) Histogram. C) Ogive. D) Scatterplot. Show Answer Correct Answer: D) Scatterplot. 32. If r is positive, then there is ..... A) Negative association. B) No correlation. C) Positive association. D) None of the above. Show Answer Correct Answer: C) Positive association. 33. Correlation shows ..... A) A relationship. B) Cause and effect. C) Both. D) Neither. Show Answer Correct Answer: A) A relationship. 34. A correlation value (r) that has a strong, positive linear association would have a value close to A) 0. B) Cannot be answered. C) -1. D) 1. Show Answer Correct Answer: D) 1. 35. Car weight and distance traveled using a full tank of gas. $r=-.86$ A) Weak negative. B) Strong positive. C) Strong negative. D) Weak positive. Show Answer Correct Answer: C) Strong negative. 36. Name the correlation in this sentence:The number of people in an audience and ticket sales. A) Negative Correlation. B) Lots of Correlation. C) Positive Correlation. D) No Correlation. Show Answer Correct Answer: C) Positive Correlation. 37. Describe the correlation: "The age of a car and its selling price." A) Positive. B) Negative. C) None. D) None of the above. Show Answer Correct Answer: B) Negative. 38. R =-0.3 is considered to have ..... A) Moderate negative correlation. B) Strong negative correlation. C) No correlation. D) Weak negative correlation. Show Answer Correct Answer: D) Weak negative correlation. 39. What does statistical analysis determine? A) The strength and direction of the relationship between variables. B) The consistency and reproducibility of a given result. C) How likely any difference between experimental groups is due to chance. D) Two variables change in the same direction. Show Answer Correct Answer: C) How likely any difference between experimental groups is due to chance. 40. The number of siblings you have and your weight. A) Positive correlation. B) Negative correlation. C) No correlation. D) All of the above. Show Answer Correct Answer: C) No correlation. 41. DESCRIBE THE LIKELY CORRELATION BETWEEN LENGTH OF TIME CANDLE BURNS AND HEIGHT OF WAX REMAINING A) POSITIVE. B) NEGATIVE. C) NO CORRELATION. D) None of the above. Show Answer Correct Answer: B) NEGATIVE. 42. If every brother is exactly two inches taller than his sister, what would the correlation between the heights of brothers and sisters be? A) 1. B) Nearly 1. C) 0. D) Somewhat positive. Show Answer Correct Answer: A) 1. 43. Name the correlation in this sentence:The average temperature in a city and the number of speeding tickets in the city. A) Lots of Correlation. B) No Correlation. C) Positive Correlation. D) Negative Correlation. Show Answer Correct Answer: B) No Correlation. 44. What is the range of values that r can be between? A) Only negative values. B) Only positive values. C) Between-1 and 1. D) None of the above. Show Answer Correct Answer: C) Between-1 and 1. 45. DESCRIBE THE LIKELY CORRELATION BETWEEN NUMBER OF HOMEWORK ASSIGNMENTS SUCCESSFULLY COMPLETED ANDSCORE ON NEXT TEST A) POSITIVE. B) NEGATIVE. C) NO CORRELATION. D) None of the above. Show Answer Correct Answer: A) POSITIVE. 46. What is a line of best fit used for? A) To make the graph look pretty. B) To make it look like you know what you are doing. C) To make predictions. D) To connect the points. Show Answer Correct Answer: C) To make predictions. 47. Number of steps taken per day and number of kilometers walked per day. $r=.92$ A) Strong negative. B) Weak positive. C) Weak negative. D) Strong positive. Show Answer Correct Answer: D) Strong positive. 48. If correlation value is 0.4, then what is correlation for that? A) No correlation. B) Positive correlation. C) Negative correlation. D) None. Show Answer Correct Answer: B) Positive correlation. 49. In a scatterplot, an outlier ..... A) Is something we didn't learn 8th grade. B) Is a puppet with a long nose named Pinocchio. C) Is a point that is far outside the main cluster of points/ordered pairs. D) Is a really naughty point who doesn't tell the truth when outside. Show Answer Correct Answer: C) Is a point that is far outside the main cluster of points/ordered pairs. 50. What type of correlation (association)?Ice cream sales and shark attacks. A) A) Positive correlation. B) B) Negative correlation. C) D) No correlation. D) None of the above. Show Answer Correct Answer: A) A) Positive correlation. 51. Average fat intake per citizen of a country and average cancer rate of a country. $r=.73$ A) Strong positive. B) Weak positive. C) Weak negative. D) Strong negative. Show Answer Correct Answer: A) Strong positive. 52. What does a correlation coefficient of-1 represent? A) A strong positive correlation. B) A strong negative correlation. C) A weak positive correlation. D) No correlation. Show Answer Correct Answer: B) A strong negative correlation. 53. Calculate the correlation coefficient for this data set and round to 3 places after the decimal.(1, 4), (5, 4), (6, 9), (7, 12) A) $.779$. B) .779 Mathematical EquivalenceON. C) All the above. D) None of the above. Show Answer Correct Answer: A) $.779$. 54. What is relationship between two variables called? A) Norelation. B) Relationship. C) Internship. D) Correlation. Show Answer Correct Answer: D) Correlation. 55. Which value of r represents data with a strong negative correlation between two data sets? A) 0.92. B) -0.14. C) -0.89. D) -1.07. Show Answer Correct Answer: C) -0.89. 56. Hours of studying vs. grades A) Positive Correlation. B) Negative Correlation. C) No Correlation. D) None of the above. Show Answer Correct Answer: A) Positive Correlation. 57. George finds that the longer he exercises, the less he weighs. The relationship between exercise & weight may be described as a(n) ..... correlation. A) Positive. B) Skewed. C) Negative. D) Normal. Show Answer Correct Answer: C) Negative. 58. What does r$^{2}$ tell us? A) How strong the correlation is. B) How much the y variable affects the x variable. C) How big the correlation is. D) How much the x variable affects the y variable. Show Answer Correct Answer: D) How much the x variable affects the y variable. 59. How tall a person is and how fast they drive A) Positive Correlation. B) Negative Correlation. C) No Correlation. D) None of the above. Show Answer Correct Answer: C) No Correlation. 60. What is a replicate in research? A) The consistency and reproducibility of a given result. B) The accuracy of a given result in measuring what it is designed to measure. C) Repeating an experiment using different samples to determine reliability. D) Two variables change in the same direction. Show Answer Correct Answer: C) Repeating an experiment using different samples to determine reliability. ← PreviousNext →Related QuizzesCommerce QuizzesClass 11 QuizzesClass 11 Economics (Statistics For Economics) Chapter 7 Correlation Quiz 1Class 11 Economics (Statistics For Economics) Chapter 7 Correlation Quiz 3Class 11 Economics (Statistics For Economics) Chapter 1 Introduction QuizClass 11 Economics (Statistics For Economics) Chapter 2 Collection Of Data QuizClass 11 Economics (Statistics For Economics) Chapter 3 Organisation Of Data QuizClass 11 Economics (Statistics For Economics) Chapter 4 Presentation Of Data QuizClass 11 Economics (Statistics For Economics) Chapter 5 Measures Of Central Tendency QuizClass 11 Economics (Statistics For Economics) Chapter 6 Measures Of Dispersion Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books