The correlation coefficient $r$ between the number of bids and the selling price is 0.991, rounded to three decimal places. This indicates a very strong positive linear relationship between the two variables.

Would you like more details on how the calculation was done or have any questions?

Here are 5 related questions to expand your understanding:

1. How do we interpret the correlation coefficient $r$ in terms of strength and direction?
2. What other methods can we use to determine relationships between two variables besides correlation?
3. Can the correlation coefficient imply causation between price and bids?
4. How does outlier data affect the correlation coefficient?
5. What is the formula for calculating the correlation coefficient manually?

Tip: A correlation coefficient close to 1 or -1 means the data points closely follow a straight line, indicating a strong linear relationship.