Which of the following statements are true? Select all that apply.

a) The correlation coefficient gives us information as to how strong the linear associationis between two quantitative variables.

b) The correlation coefficient has units of measurement and does always lie between - 1.0 and + 1.0

c) The closer the absolute value of r is to 1, the stronger the relationship is between the two variables.

d) A correlation coefficient of r=0 indicates a stron linear relationship between two variables.

e) A correlation coefficient r=-0.9 indicates a weak linear relationship between two variables.

f) Two variables can be correlated without one causing the other

Question

Mathematics

Miriam

17 November, 08:24

Which of the following statements are true? Select all that apply.

a) The correlation coefficient gives us information as to how strong the linear associationis between two quantitative variables.

b) The correlation coefficient has units of measurement and does always lie between - 1.0 and + 1.0

c) The closer the absolute value of r is to 1, the stronger the relationship is between the two variables.

d) A correlation coefficient of r=0 indicates a stron linear relationship between two variables.

e) A correlation coefficient r=-0.9 indicates a weak linear relationship between two variables.

f) Two variables can be correlated without one causing the other

+4

Answers (1)

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Rey · Answer 1

a) The correlation coefficient gives us information as to how strong the linear associationis between two quantitative variables.

b) The correlation coefficient has units of measurement and does always lie between - 1.0 and + 1.0

Correlation coefficient is represented by r. value of r can be - 1 < r < + 1. Negative correlation or positive correlation. If r = 0, either no linear correlation or weak linear correlation.