Is my free fall acceleration calculations correct?

Here are the assignment instructions:
For each of the environments, calculate the average velocity. Divide the distance between two time points by the change in time. Notice that you will only have five values of average velocity in each location.

Earth:
Time (s)- 0.0, 0.2, 0.4, 0.6, 0.8, 1

Distance (m)- 0.0, 0.2, 0.8, 1.8, 3.2, 4.94

Avg. Velocity- 1.0 m/s, 4.0 m/s, 9.0 m/s, 16.0 m/s, 24.7 m/s

Avg. Acceleration 15 m/s^2, 25 m/s^2, 35 m/s^2, 43.5 m/s^2

Average Value= 29.

Question

Is my free fall acceleration calculations correct?

Here are the assignment instructions: 
For each of the environments, calculate the average velocity. Divide the distance between two time points by the change in time. Notice that you will only have five values of average velocity in each location. 

Earth:
Time (s)-	0.0,	0.2,	0.4,	0.6,	0.8,	1

Distance (m)-	0.0,	0.2,	0.8,	1.8,	3.2,	4.94

Avg. Velocity-	1.0 m/s,	4.0 m/s,	9.0 m/s,	16.0 m/s,	24.7 m/s

Avg. Acceleration	15 m/s^2, 25 m/s^2, 35 m/s^2, 43.5 m/s^2

Average Value= 29.

anonymous · Answer

no not really

anonymous · Answer

it depends on what you have chosen the time intervals between the gaps

anonymous · Answer

for example avg velocity between 0.2 and 0.4 secs is 3m/s ... in your question it is not actually specified which one to take as initial time frame and final time frame right?

anonymous · Answer

now if you could please reframe your question that would be great!

anonymous · Answer

I attached the work I did. I assumed the time intervals was 0.2 seconds, because 0.4-0.2 = 0.2. I'm basically asking if I calculated the velocity correctly from the distances given?

anonymous · Answer

So would the average velocities be 1.0, 3.0, 5.0, 7.0, and 8.7?