The following data was taken from an experiment that measured the current in a wire for various imposed voltages:
V, V | 2 | 3 | 4 | 5 | 7 | 10 |
i, A | 5.2 | 7.8 | 10.7 | 13 | 19.3 | 27.5 |
(a) On the basis of a linear regression of this data, determine current for a voltage of 3.5 V. Plot the line and the data and evaluate the fit.
(b) Redo the regression and force the intercept to be zero.
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