HW6 due 4/4/18: LastName/ First /ID# Section# (1 point each) 1. What does it mea

Question

HW6 due 4/4/18: LastName/ First /ID# Section# (1 point each) 1. What does it mean if the correlation coefficient r-0? 2. In correlation analysis of two quantitative variables, the is the variable whose value can be explained by the value of the explanatory variable. variable 3. A is a graph that shows the relation between two quantitative variables 4. What does it mean to say two variables X and Y are negatively associated? 5. If correlation coefficient r quantitative variables, X and Y then a perfect negative linear relation exists between the two 6. If the linear correlation coefficient, r, is close to 0, then the two variables X and Y have no relation. True False 7. Correlation implies causation. True False 8. In Problems below determine whether the scatter diagram indicates that a linear relation may exist between the two variables. If the relation is linear, determine whether it indicates a positive or negative association between the variables.(2 points each) s the relation is If linear, is it positive or negative linear? association 4000 2000 1000 0 2 4 6 8 10 Explanatory 20 10 0123 456 78 Explanatory

Explanation / Answer

Solution:-
1) No correlation

2)response explanatory predictor

3) scatterplot

4) When one variable increases, the other decreases.

5) r = -1

6) True

7) Flase

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