th bar is also p X k Now look at Figure 342 where the exponential curve y 1 e 1

Th bar is also p x k now look at figure 342 where the

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th bar is alsopX(k).Now, look at Figure 3.4.2, where the exponential curvey=0.1e0.1xis super-imposed on the graph ofpX(k). Notice how closely the area under the curveapproximates the area of the bars. It follows that the probability thatXlies in some
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