view_agenda
Questions
Find the perfect question by filtering through every previous QCAA General Mathematics external exam question
notifications
Question Classifications
We’re conducting a final review of the classifications and formatting for our recently onboarded questions. If you have any feedback, please share it with us here.
QUESTION 9 It 1s observed that as the number of ice blocks sold each month increases the number of fans sold also increases. Which of these statements is therefore true? (A) (B) ©) (D) There 1s a negative causation between the number of ice blocks sold and the number of fans sold each month. There 1s a positive causation between the number of ice blocks sold and the number of fans sold each month. There 1s a negative association between the number of ice blocks sold and the number of fans sold each month. There 1s a positive association between the number of ice blocks sold and the number of fans sold each month.
QUESTION 4 A confounding variable is a variable that (A) can only take on a certain number of values. (B) remains constant throughout a statistical investigation. (C) 1s used to predict a difference in the response variable. (D) other than the explanatory variable influences the response variable.
QUESTION 1 A linear association with a correlation coefficient of 0.23 is best described as (A) weak positive. (B) weak negative. (C) strong positive. (D) strong negative.
QUESTION 7 Which statement is always true for a causal relationship between an explanatory variable and a response variable? (A) (B) (C) (D) One of the variables is a confounding variable. The relationship is explained by a third variable. There is a positive association between the variables. The response variable is dependent on the explanatory variable.
QUESTION 11 Two variables are displayed on a scatterplot. Which statement below is correct? (A) Only if there 1s a causal relationship between the two variables will they have a positive association. (B) Ifthe two variables have a negative association then there is not a causal relationship between the two variables. (C) [Ifthe two variables are associated either positively or negatively then there could be a causal relationship between the two variables. (D) Ifthe two variables are associated either positively or negatively then there is definitely a causal relationship between the two variables.
No results found
open_with
![Formula-Book-Image](https://examinsightsimages.syd1.cdn.digitaloceanspaces.com/General_Mathematics/General_Mathematics_Formula_Sheet_1.webp)
![Formula-Book-Image](https://examinsightsimages.syd1.cdn.digitaloceanspaces.com/General_Mathematics/General_Mathematics_Formula_Sheet_2.webp)