Can the given variables be correlated

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Can the following variables be correlated and, if so, would you expect the correlation to be positive or negative?

a. Height and weight of adults

b. Weight of first graders and weight of fifth graders
c. Average daily temperature and cost of heating a home

d. IQ and reading comprehension

e. The first and second quiz scores of students in two sections of General Biology

f. The section 1 scores and the section 2 scores of students in General Biology on the first quiz.

Reference no: EM131383921

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