Question: Assume that r2 equals .50 for the relationship between height and weight for adults. Indicate whether the following statement are true or false.

1. Fifty percent of the variability in heights can be explained by variability in weights.
2. There is a cause-effect relationship between height and weight.
3. The heights of 50 percent of adults can be predicted exactly from exactly from their weights.
4. Fifty percent of the variability inn weights is predictable from height.

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