Item 3: Average Hours of Student Sleep on a School Night 140 Number of counties 120 100 80 60 40 20 10 Average hours of sleep for individual high school students on a school night Note: These data come from a random sample generated by the Schoor Hardom Samoel www.astat.genetschool/Random Samleport.com The histogram above, "Average Hours for Student Sleep on a School Night," is derived from a random sample of 441 high school students. The histogram is approximately bell-shaped and fairly symmetric. Its mean is 7.2 hours and its standard deviation is 1.5 hours. We will assume this "model applies to all high school students, so we will use pe = 7.2 and o = 1.5. This information will be used for the rest if the problems in your project.
Give the area for each region numbered below on a normal curve, based on the Empirical Rule. Give exact decimal answers only (do not round). HE ♡ 1 4 $ 3 2 7 18 Area 1 = Area 2 = Area 3 = Area 4 = Area 5 =
Item 3: Average Hours of Student Sleep on a School Night 140 Number of counties 120 100 80 60 40 20 10 Average hours of
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Item 3: Average Hours of Student Sleep on a School Night 140 Number of counties 120 100 80 60 40 20 10 Average hours of
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