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as

y = - 62.68x+66.25

and the r=-0.11.

What percentage of the variation in y can be explained by the variation in the values of x?

You construct a linear model for the data, and your equation is y = 32.88x 24.77 where y is the mass in grams of the fish and is the age in weeks.

a) Use the equation to identify the slope of the linear model.

b) Use the equation to identify the y-intercept of the linear model.

Fig: 1