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In 2007, the mean rate of violent crime (per 100,000 people) for 10 regions in the northeast of a certain country was 309. The standard deviation was 103. Assume that the distribution of violent crime rates is unimodal and symmetric. Complete parts (a) through (d) below. a. Using the Empirical Rule, between what two values would you expect to find about 95% of the rates? Approximately 95% of the observations fall within the interval (].D) (Type whole numbers. b. Using the Empirical Rule, between what two values would you expect to find about 68% of the rates? Approximately 68% of the observations fall within the interval (]]) (Type whole numbers.) c. If a northeastern region had a violent crime rate of 401 crimes per 100,000 people, would this be considered unusual? Explain. O A. No, 401 would not be considered unusual because it is more than two standard deviations from the mean. O B. Yes, 401 would be considered unusual because it falls within one standard deviation of the mean. O C. Yes, 401 would be considered unusual because it is more than two standard deviations from the mean. O D. No, 401 would not be considered unusual because it falls within one standard deviation of the mean. d. If a northeastern region had a violent crime rate of 19 crimes per 100,000 people, would this be considered unusual? Explain. O A. No, 19 would not be considered unusual because it is not more than two standard deviations from the mean. O B. Yes, 19 would be considered unusual because it is more than two standard deviations below the mean. O C. Yes, 19 would be considered unusual because it is one standard deviation below the mean. O D. No, 19 would not be considered unusual because it is one standard deviation above the mean.Use the following table to answer the question. A random sample of college students was asked to respond to a survey about how they spend their free time on weekends. One question, summarized in the table below, asked each respondent to choose the one activity that they are most likely to participate in on a Saturday morning. The activity choices were homework, housework, outside employment, recreation, or other. Homework Housework Outside Employment Recreation Other Total Male 29 20 23 9 96 Female 18 39 Total 32 26 104 46 62 200 If one student is randomly chosen from the group, what is the probability that the student is female and chose "outside employment" as their most likely activity on a Saturday morning? O A. 0.43 O B. 0.23 O C. 0.13 O D. None of these