fact of life. An analysis of schools and violent crime yielded the table of joint probabilities shown next. Level Violent Crime No Violent Crime Committed This Year Committed This Year Primary .393 .191 Middle .176 .010 High .134 .007 School Combine .074 .015 d Source: Statistical Abstract of the United States, 2009, Table 237. If one school is randomly selected find the following probabilities. a) Probability of at least one incident of violent crime during the year in a primary school b) Probability of no violent crime during the year

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