Based on the scatterplot below we can say that:

Question

Answer

the relationship between family income and student grades 
 is positive (as income increases, grades also increase)

Answer

there is no relationship between family income and grades

Answer

the relationship between family income and student grades is 
 negative (as income increases, grades decrease)

Answer

the relationship between family income and student grades is 
 non-linear (income and grades are related in a non-predictable way)

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