Mathematics, 24.10.2019 09:43 brandonleestewovilgw

The correlation coefficient r between a child’s age, x, and the number of minutes spent doing homework each day, y, is 0.694. what percent of the variation in the number of minutes doing homework cannot be explained by differences in the children’s ages?

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The correlation coefficient r between a child’s age, x, and the number of minutes spent doing homewo...