In a study of hundreds of Swedish twins, it was determined that the level of mental skills

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In a study of hundreds of Swedish twins, it was determined that the level of mental skills was more similar in identical twins (twins coming from a single egg) than in fraternal twins (twins coming from two separate eggs) (Science).

State the type of study. Be as specific as possible.

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Statistical Reasoning For Everyday Life

ISBN: 9780321904645

4th International Edition

Authors: Jeffrey Bennett, William L. Briggs, Mario F. Triola

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