Which of the following statements about correlation are true? Check all that app

Question

Which of the following statements about correlation are true? Check all that apply. The correlation is scaleless; that is, it doesn't change when the measurement units are changed for either or both of the variables. A positive correlation means that two variables tend to change in the same direction. Correlation is a numerical value between 1.1 and 2. If the correlation between two variables is close to -1, there is a negative linear relationship between the two variables. The correlation indicates the strength and the direction of the linear relationship between two variables. A correlation of 1 indicates that there is little or no linear relationship between the two variables If the correlation between two variables is 0, there is no clear linear relationship between the two variables.

Explanation / Answer

Answers to each part with reasons:

1. Is true. Change the units, correelation doesn't change
2. True. Meaning all 0 to 1 have +ive correlation
3. False. Correlation ranges from -1 to 1
4. True. 2 variables have opposite movements
5. True. +ive -same direction movements, -ive different direction movements
6. False. 1 means strong relation
7. True. 0 means no linear relation between variables

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