A dump of our free Chat sessions, in case it is useful. It excludes white boards used during paid sessions.
tutor3 : Hello Student, May I help you with your Math problems? student : yes please student : my question is: Question 1: Tom works the night shift at a gas station on the edge of Champaign. One night he mixes 3 stale doughnuts in with 12 fresh doughnuts. That night 6 customers bought one doughnut each, selecting them at random. What is the probability that at least 2 stale doughnuts were sold?
tutor3 : Please wait, we are helping other students
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