Find the mean for the set of grouped data. The mean is (Round to two decimal places if needed.) Interval 0.5-2.5 2.5-4.5 4.5-6.5 6.5-8.5 Frequency 1 8 5 1

Don't drink and drive: A highway safety council reported that there were 3970 fatalities among drivers in auto accidents in a particular year. Following is a frequency distribution of their ages. Approximate the mean age. Round your answer to one decimal place. Age Number of Fatalities 11-20 349 21-30 1569 31-40 851 41-50 665 51-60 409 61-70 127 Send data to Excel The mean is approximately X 5 B

Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 51.1 miles per hour. Speed (miles per hour) Frequency 42-45 23 The mean of the frequency distribution is (Round to the nearest tenth as needed.) 46 - 49 15 miles per hour. 50-53 54-57 58-61 6 4 Which of the following best discribes the relationship between the computed mean and the actual mean? O A. The computed mean is not close to the actual mean because the difference between the means is less than 5%. OB. The computed mean is close to the actual mean because the difference between the means is more than 5%. O C. The computed mean is close to the actual mean because the difference between the means is less than 5%. O D. The computed mean is not close to the actual mean because the difference between the means is more than 5%.

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