Time Series Patterns Notes Questions with Answers PDF Download - 99

Variations that do not follow any specific pattern is called

1. Cyclic variations
2. Trend variations
3. Random/irregular variations
4. Seasonal variations

Plan of action at the second step of graphical curve fitting method to find trend forecasting, is to

1. Extending smooth line to predict
2. Plotting actual data
3. Draw a smooth line
4. Plotting future values

One of the main drawback of graphical curve fitting is its dependence of forecasting upon

1. Smoothness of line
2. Structural break period
3. Awareness of time duration
4. Average of data sections

A set of all the possible outcomes resulting from random experiment is known to be

1. Event
2. Instance
3. Element members
4. Sample space

The variability of a set of continuous scores around the mean is indicated by the means of

1. Variance
2. Phi-coefficient
3. Slope coefficient
4. Standard deviation