Question: 12.61 More leaf litter Refer to the previous exercise. a. The correlation equals -0.890 between x and y and -0.997 between x and log(y). What

12.61 More leaf litter Refer to the previous exercise.

a. The correlation equals -0.890 between x and y and

-0.997 between x and log(y). What does this tell you about which model is more appropriate?

b. The half-life is the time for the weight remaining to be one-half of the original weight. Use the equation yn = 80.610.8132x to predict the half-life of this organic material. (Hint: By trial and error, find the value of x for which 10.8132x is about 1>2.)

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