When the Correlation Between Two Variables Is Nonzero,the Value of the Sum

question 36

True/False

When the correlation between two variables is nonzero,the value of the sum of z score products is influenced not only by the size of the correlation,but also by the sample size (N).

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Definitions:

Heterozygote Advantage

A phenomenon in which the heterozygous condition confers some special advantage on an individual that either homozygous condition does not (i.e., Aa has a higher degree of fitness than does AA or aa).

Chorionic Villus Sampling

A prenatal test where samples of the chorionic villi are taken to test for genetic disorders in the fetus.

Amniocentesis

Sampling of the amniotic fluid surrounding a fetus to obtain information about its development and genetic makeup. Compare with chorionic villus sampling.

Pedigrees

A diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors from one generation to the next, used in genetics.