both Statl Final Prep (1) Word Mailings Review View Help Tell me what you want t

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Statl Final Prep (1) Word Mailings Review View Help Tell me what you want to do !!Normal ||NO Spac. Heading 2 s. ._. . Heading i Subtitle Subtitle Subtle Em.... /Emph Subtle Erne- Emph Title Paragraph Styles The Variance is the square of the standard deviation, however, the fundamental difference between the two parameters is F) The variance is only associated with relationships between two variables and the standard deviation is not G) The variance can be used to determine the extent of error in ANOVA analysis while the standard deviation calculates the standard error of the coefficient of correlation in regression analysis H) The variance is directly related to the median of data while the standard deviation is directly related to the mean of data I) None of the above (d) The estimation of the difference between means of two population depends on: J) Which population is bigger in size than the other K) which population has higher variance L) The standard error when variances of the two population are the same M) The margin of error divided by the standard error N) None of the above

Explanation / Answer

Q 1 ) Variance and Standard deviation are both the measures of spread

variance is a measure of how spread out a data set is. Variance can be calculated as the average squared deviation of each number from the mean of a data set.

The SD is the square root of the variance.

Both standard deviation and variance are derived from the mean of a given data set. the variance measures the average degree to which each point differs from the mean.
Option D ) None of the above is correct

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D ) The estimation of difference between the means of two populations depends on the standard error when the variances of the two populations are same

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