Online 30 #7

Question 1

Positive correlation graph?

Answer 1

Points move in the same direction to the right of the graph; the more something increases the more something else increases

Ex: more miles ran and calories burned or more hours you studied the higher your score was

Question 2

Negative correlation graph?

Answer 2

variables move in opposite direction

-vaccination rates increase while rate of preventable illness decrease

Question 3

The more closer 2 variables move together….

Answer 3

The stronger the relationship will be, positive or negative

Question 4

If r=1?

Answer 4

Positive correlation

Question 5

If r=-1?

Answer 5

Negative correlation

Question 6

r=decreases to 0?

Answer 6

The points scatter until there’s no linear correlation at all

Question 7

Correlation doesn’t equal causation. T or F?

Answer 7

True; just bc 2 variables are related doesnt mean one variable causes the other

Question 8

Spurious correlations?

Answer 8

2 completely unrelated things are correlated just by random chance w/ no causal link at all

Question 9

Of the following options, which correlation coefficient indicates the strongest relationship?

Answer 9

r=0.86