Mathematics, 19.03.2020 17:02 Emiliano15
) A group of 18 people from New York and a group of 15 people from Los Angeles passed the same quiz. The mean grade of group A is 78 points, with the standard deviation σ1=5, the mean grade of group B is 75 points, σ2=4.5. Use α=0.05. Assuming that the subjects are chosen randomly, the cities’ population are independent, and the points are normally distributed:
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Mathematics, 21.06.2019 16:20
The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%
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Mathematics, 21.06.2019 23:00
Which of the following graphs could represent a cubic function?
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) A group of 18 people from New York and a group of 15 people from Los Angeles passed the same quiz....
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