Example of a non-stationary series Time Series plot of dow-Jones Index 4000 3900 3800 3700 300/ 3500 1295887116145174203232261290 Time 1111 Example of a non-stationary series 1 29 58 87 116 145 174 203 232 261 290 4000 3900 3800 3700 3600 3500 Time Time Series Plot of Dow-Jones Index