(Answered) The probability that a person will have 01 or2 dental

Statistics

The probability that a person will have 0,1 or,2 dental checkups per year is 0.3, 0.6, and 0.1, respectively. If seven people are picked at random. what is the probability that two have no checkups, four will have one checkup and one will have two checkups in the next year?

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