1. Which correlation is the weakest? a) r = 0.8 b) r = -0.8 c) r = 0.3 d) r = -0.5

2. Income and education are positively correlated. If you made a scatterplot with income on the Xaxis and education on the Y-axis, and then drew a line through the data, the slope of this line would be... a) negative b) positive c) need more info

3. As attendance in a class goes down, a person's grade also tends to be lower. How would you describe this relationship? a) A positive correlation b) A negative correlation c) Weak / no correlation d) Need more info