Consider a car whose position, , is given by the table
\( t \text{ (s)} \) \( 0 \) \( 0.2 \) \( 0.4 \) \( 0.6 \) \( 0.8 \) \( 1.0 \)
\( s \text{ (ft)} \) \( 0 \) \( 0.5 \) \( 1.4 \) \( 3.8 \) \( 6.5 \) \( 9.6 \)
  1. Find the average velocity over the interval .
  2. Estimate the velocity at .