Mathematics, 31.01.2020 01:51 RickyGotFanz4867
Which of the following statements are true? select all that apply.
the correlation coefficient, r, is equal to the number of data points that lie on the regression line divided by the total number of data points.
the correlation coefficient gives us information about the number of outliers compared to the number of data points.
the correlation coefficient is a unitless number and must always lie between –1.0 and +1.0, inclusive.
the correlation coefficient, r, gives us information about the strength and direction of a linear relationship between any two variables.
if r is the correlation between two variables x and y then -r is the correlation between y and x.
the larger r is in absolute value, the stronger the relationship is between the two variables.
Answers: 3
Mathematics, 21.06.2019 19:30
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Mathematics, 21.06.2019 22:00
Find two numbers if their sum is 91 and the ratio is 6: 7?
Answers: 1
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Will give the box plots below show the math scores of students in two different classes: class a 55 72 75 89 95 class b 55 70 75 94 100 based on the box plots, which statement is correct? a: the median score of class a is greater than the median score of class b. b: the lower quartile of class a is greater than the lower quartile of class b. c: the upper quartile of class a is greater than the upper quartile of class b. d: the maximum score of class a is greater than the maximum score of class b.
Answers: 1
Mathematics, 22.06.2019 03:30
Jennifer graphs the function f(x)=x squared. then she graphs the function f(x-3). how does the graph f(x-3) differ from the graph of f(x)
Answers: 1
Which of the following statements are true? select all that apply.
the correlation coef...
the correlation coef...
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