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Statistical Methods for Fuzzy Data by Reinhard Viertl

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7.2 Problems

a. What shape has the characterizing function of the empirical correlation coefficient in the case of data in the form of two-dimensional intervals?

b. Explain in detail how to obtain the vector-characterizing function ξ(., …, .) of the combined fuzzy sample if the x-coordinates in (x, y)i* are exact.

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