An airline uses many different types of airplanes. Information regarding some of the airplanes is given in the table below
Plane
Number
of Seats
Wi-Fi
Seat
Width
(Inches)
20.3
First-
Class
Seats?
120
no
no
225
20.6
yes
yes
SkyBus 280
SkyBus 580
Grigson A-2
Grigson A-5
SkyDancer
70
19.9
no
no
130
20.5
yes
no
350
20.2
yes
yes
Which of the variables is a continuous variable?
number of seats
O seat width
O Wi-Fi
First-class