Mathematics, 25.12.2019 06:31 cutiecat66
Chemistry class had two exams. on the first exam the mean score was 70 with a standard deviation of 10. on the second exam the mean score was 60 with a standard deviation of 15. the correlation coefficient between the scores of the two exams was r = 0.6. we run a regression analysis with the first exam score as the independent variable and the second exam score as the dependent variable. we use the result to estimate the score on the second exam for each student based on their score on the first exam. for at least 75% of the students in the class, the regression estimated score for the second exam will be correct to within how many points?
Answers: 2
Mathematics, 21.06.2019 18:30
The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.
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Mathematics, 21.06.2019 20:30
1. evaluate 8x(2)y9(-2) for x=-1 and y=2 2. simplify the equation. -() 3. simplify the expression. [tex]\frac{5}{x(-2) y9(5)}[/tex]
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Mathematics, 21.06.2019 21:00
Which zero pair could be added to the function f(x) = x2 + 12x + 6 so that the function can be written in vertex form? o 3, -3o 6,629,-936, 36
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Chemistry class had two exams. on the first exam the mean score was 70 with a standard deviation of...
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