Question

A fair coin is tossed 2n times. (a) Obtain the probability that there will be an...

A fair coin is tossed 2n times.

(a) Obtain the probability that there will be an equal number of heads and tails.

(b) Show that the probability computed in (a) is a decreasing function of n

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

a)

Number of heads = number of tails

since coin is tossed 2n times

head occurs n times

probability that there will be an equal number of heads and tails =

b)

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