An internet research company surveyed 85 online shoppers, each of whom made one purchase today. The company recorded the type of purchase each shopper made. Here is a summary. Number of Type of purchase shoppers Toys 33 Office supplies 21 Beauty supplies Food 18 13 Three shoppers from the survey are selected at random, one at a time without replacement. What is the probability that all three of the shoppers purchased toys? Do not round your intermediate computations. Round your final answer to three decimal places.