Here are the solutions to the given questions based on the data provided:

1. $\sum X = 425$
2. $\sum Y = 426$
3. $\sum XY = 30221$
4. $\sum X^2 = 30755$
5. $\sum Y^2 = 31504$
6. The value of the correlation coefficient $r$ is approximately $0.051$

Would you like further clarification or a breakdown of any part of the solution?

Here are five related questions:

1. What does the correlation coefficient $r$ tell us about the relationship between Math and Science scores?
2. How is $r$ affected by the magnitude of $X$ and $Y$ values?
3. What are some possible reasons for a low correlation coefficient?
4. How would you interpret a correlation coefficient close to 1 or -1?
5. Can $r$ be influenced by outliers in the data? How?

Tip: The correlation coefficient $r$ ranges from -1 to 1. The closer it is to these extremes, the stronger the relationship between the variables.