A biased coin has probability of landing heads and probability of landing tails. The coin is flipped until the very next occurence that matches the initial flip. On average, what is the total number of flips required (including the first one)?

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value

the answer is d

step-by-step explanation:

the answer is d

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