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

Easy

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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