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Interactive Grade 12 Maths Statistics & Probability Test — Statistics & Probability Practice

1.

A Type II error is ___

A.Failing to reject H₀ when it is falseB.Rejecting H₀ when it is trueC.Using too large a sampleD.A rounding error

2.

The Central Limit Theorem states: as n → ∞, the sampling distribution of x̄ approaches ___

A.Normal distributionB.Uniform distributionC.Binomial distributionD.Poisson distribution

3.

In a normal distribution, ~68% of data lies within ___ standard deviations of the mean.

A.1B.2C.3D.0.5