For this portfolio, describe a situation in which the rate of change for data over a short period of time would be a good estimate for the rate of change over a longer period of time. Write 2 - 4 sentences describing this situation and the patterns you would expect to find in the data.
Include your reasoning on why this situation is a good indicator for the rate of change over a longer period of time.
Write 2 - 4 sentences describing a factor that might impact the rate of change so that it is no longer a good indicator of the rate of change in future observations.
Include your predictions about the effects of the factor on the rate of change.