Which of the following statements are true? select all that apply.
1. The correlation coe...
Mathematics, 05.05.2020 21:41 kikirogers6530
Which of the following statements are true? select all that apply.
1. 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.
2.The correlation coefficient gives us information about the number of outliers compared to the number of data points.
3. The correlation coefficient is a unitless number and must always lie between –1.0 and +1.0, inclusive.
4.The correlation coefficient, r, gives us information about the strength and direction of a linear relationship between any two variables.
5. If r is the correlation between two variables x and y then -r is the correlation between y and x.
6. The larger r is in absolute value, the stronger the relationship is between the two variables.
Answers: 2
Mathematics, 21.06.2019 23:10
Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?
Answers: 3
Mathematics, 22.06.2019 00:30
Use the irregular polygon below. show all work. a. find the perimeter. b. find the area. the angles of the irregular polygon is 2, 8, 8, and 4.
Answers: 2
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