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Chapter 9, Question 1.
Logarithmic transformation

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Select all of the following statements which you believe to be true. The logarithmic transformation is helpful for purposes of Normalization, linearisation and/or variance stabilisation if:

The data are skewed to the left.
The data are presented in the form of proportions.
The data follow a Lognormal distribution.
The variance tends to decrease with increasing values of the variable of interest.
The arithmetic mean is much smaller than the median.