00:01
In this question, we are asked to find the incorrect statement about a stationary time series.
00:30
And we have the given statements are statement a is the process generating the process, job generating the data as a constant mean generating the data has a constant mean.
00:57
So we know that this is a correct statement because the process generating the data obviously has a constant mean.
01:04
Now we have been given statement b that the time series plot, the time series plot is a straight line is a straight line.
01:22
So we know that the time series plot is not a straight line.
01:26
This is not a straight line because it may have ups and downs because it may have ups and downs, but it should not have a trend like on average, it seems to increase or decrease.
01:46
Therefore, option b is the incorrect statement.
01:51
Now we have next statement that the statistical properties, the statistical properties are independent of time are independent of time...