\fDescriptive Statistics of Number of Hours of Sleep Number of Hours of Sleep Reported by College Students Frequen Valid Cumulative cy Percent Percent Percent Valid 4 2 5.0 5.0 5.0 5 3 7.5 7.5 12.5 6 7 17.5 17.5 30.0 8 20.0 20.0 50.0 12 30.0 30.0 80.0 CO 00 7 17.5 17.5 97.5 10 2.5 2.5 100.0 Total 40 100.0 100.0\fNumber of Hours of Sleep Reported by College Students 12 LO Frequency N 4 5 6 7 8 9 10 Number of Hours of Sleep Reported by College Students Histogram 12 Mean - 7.25 Std. Dev. = 1.463 N - 40 10 8 Frequency 8 10 12 Number of Hours of Sleep Reported by College StudentsMean X - EFX EF Standard Deviation (SD) = EF ( X - X) 2 N-1 290 83.4 = 40 40-1 = 7.25 = V2.1384 = 1.46 Mode = 8 Variance = (SD)? = (1.46)? = 2.13 Median = (7+8)/2 = 7.5 Range = 10 - 4 = 6