Use the graph attached to answer the following questions.

a

Which is the independent variable?

Time

A

Temperature

B

Time

A

Temperature

B

b

Is there an upward or downward trend, or no trend?

Downward trend

A

Upward trend

B

No trend

C

Downward trend

A

Upward trend

B

No trend

C

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Plan and conduct investigations using the statistical enquiry cycle: A justifying the variables and measures used B managing sources of variation, including through the use of random sampling C identifying and communicating features in context (trends, relationships between variables, and differences within and between distributions), using multiple displays D making informal inferences about populations from sample data E justifying findings, using displays and measures.

Investigate a given multivariate data set using the statistical enquiry cycle