In High School #1, the mean and standard deviation of the graduates' GPA distribution are 2.8 and 0.5In High School #2, the mean and standard deviation of the graduates' GPA distribution are 3.0 and 0.4Ben and Cathy graduate from HS#1 and HS#2, respectively, and they both have a 3.6 GPA Who has a higher class ranking?They have the same class ranking:Cathy has a higher class rankingIt's impossible to tell:Ben has higher class ranking:
In High School #1, the mean and standard deviation of the graduates' GPA distributio…
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suppose the mean height in inches of all 9th grade students at one high school is estimated the population standard deviation is 6 inches the heights of 8 randomly selected students are 72 7 42192
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SOLVED: 27. At Liberty High School, 140 students just completed a statistics course. The final exam percentages were normally distributed with a mean of 80 and a standard deviation of 6. What percentage of students scored greater than 80?28. At Liberty High School, 140 students just completed a statistics course. The final exam percentages were normally distributed with a mean of 80 and a standard deviation of 6. What percentage of students scored greater than 86?29. At Liberty High School, 140
SOLVED: 27. At Liberty High School, 140 students just completed a statistics course…
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