Question

martina is interested in learning about different education systems around the world. she found data about two variables: the average class size. the scores on a standardized test. here is a scatter plot for the data. the r - value is - 0.23. based on the r - value, what relationship is there between the variables? positive negative no association what is the strength of the relationship? weak strong

Explanation:

La correlación entre dos variables se determina por el signo del valor \( r \). Un valor negativo de \( r \) (-0.23) indica una relación negativa. Además, la fuerza de la correlación se evalúa por la magnitud de \( r \). Un valor cercano a 0 (en este caso, -0.23) indica una relación débil.

Answer:

Negative, Weak