Chapter 2 Review

Describe the time series graph using one of the options below.

• Structural change

• Irregular Fluctuations

• Cyclic

• Seasonal Change

What is the best description of the pattern shown in this time series graph?

• Cyclical

• Negative Trend

• Positive Trend

• Random

Which graph is the best example of seasonality?

• A

• B

• C

What is the best description of the pattern shown in this time series graph?

• Irregular fluctuations

• Positive Trend

• No trend

• Structural Change

What is the best description of the pattern shown in this time series graph?

• Seasonal, positive trend

• Structural change, cyclic

• Trendy

• Cyclic, no trend

Calculate the 3-point moving mean centred on x = 40

• 550

• 600

• 610

• 700