# Statistics 1

## Quiz by Ben Grief

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30 questions
• Q1
Identify this symbol s
Standard error
Variance
Mean
Stardard deviation
30s
• Q2
Identify this symbol µ
Variance
True mean
Standard error
Mean
30s
• Q3
Identify this symbol x ̅
True mean
Standard error
Mean
Sum of
30s
• Q4
Identify this symbol s/√n
Deviation
Error
Standard error
Standard deviation
30s
• Q5
A positive skew has a long tail to the
Right
Left
30s
• Q6
Kurtosis is a measure of
Significance
Normality
Reliability
Tailedness
30s
• Q7
A negative skew has a long tail to the
Right
Left
30s
• Q8
With a kurtosis value of 0.5 it is appropriate to use parametric statistics
True
False
30s
• Q9
The cross in the centre of the box of a box and whisker plot marks the
Interquartile range
Median
Mean
Mode
30s
• Q10
The whiskers on a box an whisker plot represent
The interquartile range
The total range
The mean
The median
30s
• Q11
The box on a box and whisker plot represents the
The total range
The mean
Interquartile range
The median
30s
• Q12
In a normal distribution +1 standard deviation from the mean represents
34.1% of the variation
47.5% of the variation
99.7% of the variation
99.7% of the variation
30s
• Q13
In a normal distribution +/-1 standard deviation from the mean represents
13.5% of the variation
47.5% of the variation
99.7% of the variation
68.2% of the variation
30s
• Q14
In a normal distribution -3 standard deviations from the mean represents
13.5% of the variation
47.5% of the variation
49.8% of the variation
99.7% of the variation
30s
• Q15
Which are not measures of central tendency?
Median
Mean
Mode
They are all measures of central tendency
30s

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