A survey of radio stations was conducted following the attacks on the World Trade Center in 2001. One of the variables recorded was the region in which the station was located (east, center, or west). In addition to the variable "region," the following information was collected: the quartile of the media market (top, second, third, and fourth), state, rank (a number between 1 and 205), and share (a number between 0 and 7). The side-by-side boxplots of station rank, above, show:
A)different median ranks between the regions.
B)more variability in ranks of coast stations.
C)similar minimum ranks between regions.
D)All of the answer options are correct.

Question

A survey of radio stations was conducted following the attacks on the World Trade Center in 2001. One of the variables recorded was the region in which the station was located (east, center, or west). In addition to the variable "region," the following information was collected: the quartile of the media market (top, second, third, and fourth), state, rank (a number between 1 and 205), and share (a number between 0 and 7).  The side-by-side boxplots of station rank, above, show:
A)different median ranks between the regions. 
B)more variability in ranks of coast stations. 
C)similar minimum ranks between regions. 
D)All of the answer options are correct.

Quizplus · Accepted Answer

All of the answer options are correct. The boxplots show different median ranks between the regions, with the East having the highest median rank and the West having the lowest. There is also more variability in ranks for coast stations than for central stations. Finally, the boxplots show that the minimum ranks are similar between regions.

A Survey of Radio Stations Was Conducted Following the Attacks