45. In ipping a fair coin let X be the number of tosses to get the rst...
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45. In ipping a fair coin let X be the number of tosses to get the rst head. Then p(x) .5x for x 1, 2, 3, . . . . Find MX(t) and use it to get E(X) and V(X).
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Modern Mathematical Statistics With Applications
ISBN: 9780534404734
1st Edition
Authors: Jay L Devore
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