Question: 78. Discuss how well a linear model approximates the data shown in each scatter plot. (a) (b) (c) (d) 79. Let y = 2x +

78. Discuss how well a linear model approximates the data shown in each scatter plot.
(a)

y 4 3 1 2 3 4 5

(b)

4 2- 1 2 3 4 5

(c)

y 4 3 1 2 3 4 5 4 2- 1 2

(d)

3 4 5

79. Let y = 2x + 2 and t = x + 1.What kind of variation do y and t have? Explain.

y 4 3 1 2 3 4 5 4 2- 1 2 3 4 5

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