Problem 1. Determine the type of each of the following variables (whether they are numerical, binary,
nominal, and ordinal)
(a) Number of assignment partners in a year by college students
(b) Petal area of rose flowers
(c) Key on the musical scale
(d) Heart beats per minute of Tour de France cyclists
(e) Stage of fruit ripeness (under ripe, ripe, over ripe)
(f) Angle of flower orientation relative to position of sun
(g) Letter grade on high school report card
(h) Tree species
(i) Year of birth
(j) Gender