Question

When investigating the relationship between estriol levels in women and their birth weight, the following information...

When investigating the relationship between estriol levels in women and their birth weight, the following information was obtained:

Pearson's correlation coefficient: 0.8780
Sum of Cross products = 37.000
Variance of Estriol = 10.571
Variance of Birth Weights = 4.667

How many participants in this study?

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