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the following table shows the results of a survey in which school students were asked about their preferred career industry. entertainment engineering science medical science law & finance total 4th graders 20 4 12 4 40 7th graders 12 8 11 9 40 10th graders 4 12 13 11 40 total 36 24 36 24 120 a 7th grade student is selected at random. determine the probability that the student aspires to join the medical science industry.