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Question

X, Y and Z are closed intervals of unit length on the real line. The overlap of X and Y is half a unit. The overlap of Y and Z is also half a unit. Let the overlap of X and Z be k units. Which of the following is true?

a.

k must be 1

b.

k must be 0

c.

k can take any value between 0 and 1

d.

None of the above

Answer: (d).None of the above

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Q. X, Y and Z are closed intervals of unit length on the real line. The overlap of X and Y is half a unit. The overlap of Y and Z is also half a unit. Let the overlap of X and Z be k...

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