NZ Level 7 (NZC) Level 2 (NCEA)
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Features of Populations and Samples

Interactive practice questions

Which of the following is the notation for the population mean?

$\mu$μ

A

$s$s

B

$\overline{x}$x

C

$\sigma$σ

D

$\mu$μ

A

$s$s

B

$\overline{x}$x

C

$\sigma$σ

D
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Which of the following is the notation for the population standard deviation?

Which of the following is the notation for the sample mean?

Which of the following is the notation for the sample standard deviation?

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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