Use the graph attached to answer the following questions.
Which is the explanatory variable?
Time
Temperature
Is there an upward or downward trend, or no trend?
Downward trend
Upward trend
No trend
Determine whether each of the following statements are true or false.
For which list of months was the rainfall in London less than the rainfall in Berlin?
The graph shows energy usage in two countries over several years. Determine whether each of the following statements are true or false.
construct time series plots
describe time series plots by identifying features such as trend (long term direction), seasonality (systematic, calendar-related movements), and irregular fluctuations (unsystematic, short term fluctuations), and recognise when there are outliers; for example, one-off unanticipated events