Eight hundred dentists were surveyed about the toothpaste they would recommend to their patients. The survey results are shown in the table below.
Dentists Survey Results
Toothpaste Number Recommended
W 280
X 165
Y 210
Z 145
Which of these could a commercial accurately state about the results of the survey?
Select one:
More than half of the dentists recommended toothpaste W and Y.
More than twice as many dentists recommended toothpaste W over Z.
More dentists recommended toothpaste Z over Y.
Four out of five dentists recommended one of the toothpastes.