The graph shows the change in Australian stock prices (in red) and US stock prices (in blue) over several years.
What can you say about the trend of the US and Australian stock prices from October 2002 to October 2006?
During October of which year do we start to see the trend change direction?
What evidence on the graph indicates the Global Financial Crisis occurred?
Which country’s stock prices fared better after the Global Financial Crisis?
Carry out investigations of phenomena, using the statistical enquiry cycle: A conducting experiments using experimental design principles, conducting surveys, and using existing data sets B finding, using, and assessing appropriate models (including linear regression for bivariate data and additive models for time-series data), seeking explanations, and making predictions C using informed contextual knowledge, exploratory data analysis, and statistical inference D communicating findings and evaluating all stages of the cycle.
Investigate time series data