NZ Level 7 (NZC) Level 2 (NCEA)
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Fitting functions to Data

Interactive practice questions

The scatter diagram shows the number of restaurants in a city over time.

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a

Which type of model would be appropriate for this data?

Linear

A

Quadratic

B

Linear

A

Quadratic

B
b

Will the slope of the line in the linear model be positive or negative?

Positive

A

Negative

B

Positive

A

Negative

B
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The scatter diagram shows the number of sales of hot-chocolate a cafe makes as a function of temperature.

The scatter diagram shows the number of fish in pond as a function of time.

The scatter diagram shows the average fuel economy of a car as a function of speed.

Outcomes

S7-2

S7-2 Make inferences from surveys and experiments: A making informal predictions, interpolations, and extrapolations B using sample statistics to make point estimates of population parameters C recognising the effect of sample size on the variability of an estimate

91264

Use statistical methods to make an inference

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