Hello chegg 2nd time i post this question please answer jus

Hello chegg 2nd time i post this question, please answer =). just answer question #4 ? on the attatched document. Also i have bad eye vision so i would appreciate if the anwer was written in a clear way =)

Solution

Answer to the 4th part is simple. Your assumption is that the rate of flow between given time intervals are constant but that need not be so. That is evident from your graph too where you added the area under the curve. This is the hint.

If i have more data points then i have more accurate answer because then apporaximation will be more closer to the answer so if i have say data points after every 30 minutes or seconds so on . My point is that closer the points are better the apporaximation. Best will be if we know the function apporaximating the graph. in that case we could integrate the function.