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An electron has a wavefunction
4(x) = Ce-lxl/xo
where xo is a constant and C=1/√x, for normalization. For this case, obtain
expressions for
(a) (x) and Ax in terms of xo.
(b) Also calculate the probability that the electron will be found within a
standard deviation of its average position, that is, in the range (x) - Ax to
(x) + Ax, and show that this is independent of xo.

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