The standard deviation is appropriate as a measure of dispersion for ordinal data.
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Q7: Relative and absolute frequencies are appropriate measures
Q8: Both descriptive and inferential techniques must be
Q9: A statistic that is resistant to large
Q10: A Type II error has occurred if
Q11: The median is robust,but the mean is
Q13: A "two-tailed test" is used to test
Q14: In hypothesis testing,it is very difficult
Q15: Descriptive statistics are used to make inferences
Q16: Sometimes variables may be bimodal,which means that
Q17: For interval data,the chi-square test is the
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