These are explanations and solutions for IB past papers, not the official version. For official papers, you can go to IB Follet or access them through your school.
These are explanations and solutions for IB past papers, not the official version. For official papers, you can go to IB Follet or access them through your school.
These are explanations and solutions for IB past papers, not the official version. For official papers, you can go to IB Follet or access them through your school.
These are explanations and solutions for IB past papers, not the official version. For official papers, you can go to IB Follet or access them through your school.
02 Hours
110 Marks
Calculator is allowed
IB MATH AA HL, Paper 2, November, 2022, TZ0, Solved Past Paper
Master the 2022 IB November for Paper 2 Mathematics AA HL with examiner tailored solutions and comments for TZ0
Question 1 [Explained]
The data for a set of eight students includes their Mathematics (x) and Science (y) test scores. Our task is to determine the linear equation that models the relationship between the two scores.
This linear equation, or regression line, can be represented by (y = ax + b), where (a) indicates the slope of the line, signifying how steep it is, and (b) indicates the y-intercept, which is where the line crosses the y-axis.
Mathematics scores (x) | 64 | 68 | 72 | 75 | 80 | 82 | 85 | 86 |
Science scores (y) | 67 | 72 | 77 | 76 | 84 | 83 | 89 | 91 |
Question 1 [a] [Explanation]
Determine the numerical values of constants 'a' and 'b' that will satisfy the given conditions.
These constants are part of an equation or system of equations and are essential for understanding the relationship they describe.
Video Solution by an IB Examiner - Coming soon
Question 1 [b] [Explanation]
Calculate the value of the Pearson’s product-moment correlation coefficient, often denoted as r. This statistic measures the strength and direction of a linear relationship between two variables on a scatter plot.
Video Solution by an IB Examiner - Coming soon
Question 1 [c] [Explanation]
Consider a student's performance on the Mathematics test, specifically a score of 78. Using your knowledge of how mathematics scores relate to science scores through the regression line equation, determine the corresponding Science test score. The result should be a whole number, so round it accordingly.
Video Solution by an IB Examiner - Coming soon