Statistics

Part 7 (12 points) A study was conducted to see how many hours of sleep students at QCC had last night. The results were that 18 students had 5 hours of sleep, 37 had 6 hours of sleep, 85 students had 7 hours of sleep, 73 students had 8 hours of sleep, 60 students had 9 hours of sleep and 27 had 10 hours of sleep. Make a probability distribution table based on the number of hours of sleep. Use this to determine the expected number of hours of sleep a QCC student gets and the standard deviation