Sunday, 24 May 2015

Probability Question A fair coin is tossed repeatedly until a head appears

Can you help me with this.




A fair coin is tossed repeatedly until a head appears. Let N be the number of
trials until the rst head appears. Then a fair die is rolled N times. Let X be the number of times that the die comes up 4. Calculate P{X=0}, P{X=1} and E[X].

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