To find the weight of a cheetah that runs 7 miles using the line of best fit \( y = 195 - 7.3x \), we can substitute \( x = 7 \) into the equation:
\[ y = 195 - 7.3(7) \]
Calculating the value:
\[ y = 195 - 51.1 \] \[ y = 143.9 \]
So, the weight of a cheetah that runs 7 miles is 143.9 pounds.
Now, we need to determine whether this situation involves extrapolation or interpolation. The given data points in the table cover miles run from 1 to 10. Since 7 miles falls within this range, we are using interpolation.
Therefore, the correct answer is:
143.9 pounds and interpolation.