# Statistics 1

## Quiz by Ben Grief

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30 questions

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- Q1Identify this symbol sStandard errorVarianceMeanStardard deviation30s
- Q2Identify this symbol µVarianceTrue meanStandard errorMean30s
- Q3Identify this symbol x ̅True meanStandard errorMeanSum of30s
- Q4Identify this symbol s/√nDeviationErrorStandard errorStandard deviation30s
- Q5A positive skew has a long tail to theRightLeft30s
- Q6Kurtosis is a measure ofSignificanceNormalityReliabilityTailedness30s
- Q7A negative skew has a long tail to theRightLeft30s
- Q8With a kurtosis value of 0.5 it is appropriate to use parametric statisticsTrueFalse30s
- Q9The cross in the centre of the box of a box and whisker plot marks theInterquartile rangeMedianMeanMode30s
- Q10The whiskers on a box an whisker plot representThe interquartile rangeThe total rangeThe meanThe median30s
- Q11The box on a box and whisker plot represents theThe total rangeThe meanInterquartile rangeThe median30s
- Q12In a normal distribution +1 standard deviation from the mean represents34.1% of the variation47.5% of the variation99.7% of the variation99.7% of the variation30s
- Q13In a normal distribution +/-1 standard deviation from the mean represents13.5% of the variation47.5% of the variation99.7% of the variation68.2% of the variation30s
- Q14In a normal distribution -3 standard deviations from the mean represents13.5% of the variation47.5% of the variation49.8% of the variation99.7% of the variation30s
- Q15Which are not measures of central tendency?MedianMeanModeThey are all measures of central tendency30s