The histogram in the figure below is based on information from one university survey. The histogram displays hours of sleep per day for a random sample of 210 students. Estimate the mean hours of sleep, standard deviation of hours of sleep and coefficient of variation. Round the answers to two decimal places. Frequency 90 80 70 60 50 40 30 20 10 3 3.5 3 5 4.5 24 66 5.5 6.5 7.5 90 8.5 16 3 9.5 10.5 Hours of sleep

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