calccard.py

from random import randrange as rand

nonlands = 53
lands = 28
total = nonlands + lands
print 'Total cards:', total

tlands = 0
samples = 100000
for i in xrange(samples):
  l, nl = lands, nonlands

	for x in xrange(10):
		if rand(l+nl) < l:
			tlands += 1
			l -= 1
		else:
			nl -= 1

print 'Average lands per first 10 cards:', tlands / float(samples)
print 'Naively expected:', float(lands) / (lands + nonlands) * 10