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3 November, 20:06

The accompanying data on x = current density (mA/cm2) and y = rate of deposition (µm/min) appeared in an article. Do you agree with the claim by the article's author that "a linear relationship was obtained from the tin-lead rate of deposition as a function of current density"? x 20 40 60 80 y 0.14 1.25 1.71 2.07 Find the value of r2. (Round your answer to three decimal places.) r2 =

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  1. 3 November, 23:08
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    92.616%

    Step-by-step explanation:

    Given is the data of x and y where

    x = current density (mA/cm2) and

    y = rate of deposition (µm/min)

    to find out whether there is linear relationship between x and y

    x y

    20 0.14

    40 1.25

    60 1.71

    80 2.07

    r 0.962364513

    r^2 0.926145457

    Since r is very near to 1, we find that there is a strong positive correlation and hence linearity can be assumed

    r square the coefficient of determination is 0.9261 which is 92.616%

    this is the measure which accounts for variation in x due to y and or variation in y due to x.
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