Final answer:
b) A strong positive correlation. A correlation coefficient of r=+.83 indicates a strong positive correlation.
Step-by-step explanation:
A correlation coefficient of r=+.83 indicates a strong positive correlation. This means that as one variable increases, the other variable tends to increase as well. A correlation coefficient ranges from -1 to 1, where a positive value indicates a positive correlation and a value close to 1 indicates a strong relationship.