Practice Interpreting correlation with authentic MYP MYP Extended Mathematics exam questions for both SL and HL students. This question bank mirrors Paper 1, 2, 3 structure, covering key topics like core principles, advanced applications, and practical problem-solving. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of MYP examiners.
When interpreting the correlation coefficient, , in context, several factors must be considered to ensure the validity of the interpretation. Which of the following is one of those factors?
A student calculates a correlation coefficient of for a bivariate data set. They conclude that the relationship between the two variables must be linear and that it is not necessary to view a scatter plot to confirm this.
Which of the following statements is correct?
Which of the following is the most precise definition of "bivariate data" as described in the text?
In a dataset with , such as the news media example in the text, how should the linear relationship be described?
The correlation coefficient between two variables and is . If the units of measurement for both variables are changed from metres to centimetres, what is the value of the new correlation coefficient?
The correlation coefficient is used to measure the strength and direction of the linear relationship between two variables. Which of the following is a necessary condition for to be a valid numerical summary of this relationship?
Which of the following statements is correct regarding the possibility of a correlation coefficient being for a bivariate data set?
True or False: A scatter plot that has a very steep line of best fit will always have a correlation coefficient closer to 1 than a plot with a shallow line of best fit.
In the 'Attitudes To News Media' example provided in the text, the correlation coefficient is , which indicates a weak negative linear relationship. Which of the following hypothetical student score pairs would most significantly act as an outlier that contradicts this negative direction?
When the correlation coefficient, , is approximately , the points in a scatter plot often form a 'loose cloud'. Which of the following best describes the relationship between the variables in this scenario?
Practice Interpreting correlation with authentic MYP MYP Extended Mathematics exam questions for both SL and HL students. This question bank mirrors Paper 1, 2, 3 structure, covering key topics like core principles, advanced applications, and practical problem-solving. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of MYP examiners.
When interpreting the correlation coefficient, , in context, several factors must be considered to ensure the validity of the interpretation. Which of the following is one of those factors?
A student calculates a correlation coefficient of for a bivariate data set. They conclude that the relationship between the two variables must be linear and that it is not necessary to view a scatter plot to confirm this.
Which of the following statements is correct?
Which of the following is the most precise definition of "bivariate data" as described in the text?
In a dataset with , such as the news media example in the text, how should the linear relationship be described?
The correlation coefficient between two variables and is . If the units of measurement for both variables are changed from metres to centimetres, what is the value of the new correlation coefficient?
The correlation coefficient is used to measure the strength and direction of the linear relationship between two variables. Which of the following is a necessary condition for to be a valid numerical summary of this relationship?
Which of the following statements is correct regarding the possibility of a correlation coefficient being for a bivariate data set?
True or False: A scatter plot that has a very steep line of best fit will always have a correlation coefficient closer to 1 than a plot with a shallow line of best fit.
In the 'Attitudes To News Media' example provided in the text, the correlation coefficient is , which indicates a weak negative linear relationship. Which of the following hypothetical student score pairs would most significantly act as an outlier that contradicts this negative direction?
When the correlation coefficient, , is approximately , the points in a scatter plot often form a 'loose cloud'. Which of the following best describes the relationship between the variables in this scenario?