Consider the following statistics for a tennis player:
*Name:* Vance McFarland
*Age:* 28
*Height:* 191 cm
*Country:* Ireland
*Tournament wins:* 14
*Average serving speed:* 185 km h-1
*Ranking:* 6
*Career prize money:* £3 720 000
Classify each variable as categorical, discrete, or continuous.