QUESTION 12 Suppose that the duration of a particular type ofcriminal trial is known to be normally distributed with a mean of 21 days and

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QUESTION 12 Suppose that the duration of a particular type ofcriminal trial is known to be normally distributed with a mean of 21 days and a standard deviation of seven days. If one ofthe trials is randomly chosen, nd the probability that it lasted at least 24 days. Solution: Answerto2decimal places. QUESTION 13 Suppose that the duration of a particular type ofcriminal trial is known to be normally distributed with a mean of 21 days and a standard deviation of seven days. Sixty percent of all trials of this type are completed within how many days? Solution: Answer as a whole number. QUESTION 14 IQ is normally distributed with a mean of'lUU and a standard deviation of'lS. Suppose one individual is randomly chosen. Let X = IQ of an individual. a. Find the probability that the person has an IQ greater than 120. To 2 decimal places Answer: b. MENSA is an organization whose members have the top 2% of all IQs. Find the minimum IQ needed to qualify for the MENSA organization. Round to nearest whole number. Answer: c. The middle 50% of IQs fall between what two values? Round to nearest whole number