Question

Correlations Between Congestion Ratings and Features of the Crowd in Raters’ Immediate Vicinity

Crowd feature Before obstacle After obstacle Overall
Density



Velocity



Researcher Xiaolu Jia and colleagues monitored individuals’ velocity and the surrounding crowd density as a group of study participants walked through a space and navigated around an obstacle. Participants rated how congested it seemed before the obstacle, after the obstacle, and overall, and the researchers correlated those ratings with velocity and density. (Correlations range from −1 to 1, with greater distance from 0 indicating greater strength). The researchers concluded that the correlations with velocity are stronger than those with density.
Which choice best describes data from the table that support the researchers’ conclusion?
Choose 1 answer:
Choose 1 answer:
(Choice A) The correlation between congestion ratings before the obstacle and density is further from 0 than the correlation between overall congestion rating and velocity is.
A
The correlation between congestion ratings before the obstacle and density is further from 0 than the correlation between overall congestion rating and velocity is.
(Choice B) The correlation between congestion ratings before the obstacle and velocity is further from 0 than the correlation between congestion overall and velocity is.
B
The correlation between congestion ratings before the obstacle and velocity is further from 0 than the correlation between congestion overall and velocity is.
(Choice C) For each of the three ratings, the correlation with velocity is negative while the correlation with density is positive.
C
For each of the three ratings, the correlation with velocity is negative while the correlation with density is positive.
(Choice D) For each of the three ratings, correlations with velocity are further from 0 than the corresponding correlations with density are.
D
For each of the three ratings, correlations with velocity are further from 0 than the corresponding correlations with density are.

Answer 1

[AI-generated answer — Bot GPT 3.5]

(Choice D) For each of the three ratings, correlations with velocity are further from 0 than the corresponding correlations with density are.

This choice best describes the data from the table that supports the researchers' conclusion that the correlations with velocity are stronger than those with density.