## mark a section (Learn more)

MATCH = 0.1 NO_MATCH = 0.9 percentages = [ NO_MATCH**4, NO_MATCH**3 * MATCH * 4, NO_MATCH**2 * MATCH**2 * 6, # 12, 13, 14, 23, 24, 34 NO_MATCH * MATCH**3 * 4, MATCH**4 ] sum = 0.0 percentages.each_with_index do |pct, matches| puts "%d matches %.2f%% of the time averages %.2f matched (%d matchings)" % [matches, pct, matches * pct, pct * 10000 * 10000] sum += pct * matches end puts sum ## Output 0 matches 0.66% of the time averages 0.00 matched (65610000 matchings) 1 matches 0.29% of the time averages 0.29 matched (29160000 matchings) 2 matches 0.05% of the time averages 0.10 matched (4860000 matchings) 3 matches 0.00% of the time averages 0.01 matched (360000 matchings) 4 matches 0.00% of the time averages 0.00 matched (10000 matchings) 0.4

This paste will be private.