Ключевые слова: analysis, background, bet, betting, black, business, calculating, calculation, chance, chart, conditional probability, counting, definition, diagram, dice, element, finance, flip, formula, gamble, gambling, game, graphic, independent, investment, leisure, line, luck, lucky, math, mathematical, mathematics, numbers, opportunity, play, prediction, probabilities, probability, probability tree, random, realistic, result, risk, school, solution, statistics, strategy, symbol, tree diagram,