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 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Economics (Statistics For Economics) Chapter 7 Correlation Quiz 3 (10 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Hours in the mall vs. amount of money spent A) Positive Correlation. B) Negative Correlation. C) No Correlation. D) None of the above. Show Answer Correct Answer: A) Positive Correlation. 2. The correlation coefficient, r, is given for several different linear models for a data set. Which value for r indicates the strongest best fit for the data? A) -0.34. B) -0.98. C) 0.01. D) -0.85. Show Answer Correct Answer: B) -0.98. 3. If r=0, there is a strong correlation. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 4. What is illusory 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: C) Seeing relationships between two things when no such relationship exists. 5. What is positive 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 the same direction. Show Answer Correct Answer: D) Two variables change in the same direction. 6. Correlation coefficient is the statistic that measures the strength and direction of a linear association between two quantitative variables. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 7. If there is NO correlation between 2 variables, the correlation coefficient is ..... A) 1. B) 0. C) -1. D) 10. Show Answer Correct Answer: B) 0. 8. Which value of r represents data with a strong positive correlation between two data sets? A) 0.01. B) 0.89. C) 0.34. D) 1.04. Show Answer Correct Answer: B) 0.89. 9. Correlation applies to both quantitative and categorical data. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 10. What does a correlation coefficient describe? A) The amount of scatter in a scatter plot. B) The strength of the relationship between two sets of data. C) The equation of a straight line. D) The number of variables in bivariate data. Show Answer Correct Answer: B) The strength of the relationship between two sets of data. ← PreviousRelated QuizzesCommerce QuizzesClass 11 QuizzesClass 11 Economics (Statistics For Economics) Chapter 7 Correlation Quiz 1Class 11 Economics (Statistics For Economics) Chapter 7 Correlation Quiz 2Class 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