Mark the correct alternative in the following: A fair coin is tossed 99 times. If X is the number of times heads occur, then P(X = r) is maximum when r is

Question

Philoid · Accepted Answer

Given:

n=99

p(H)=P(T)=1/2

P(x=r)= ⁿC_r p^r q^n-r

P(x=r)= ⁿC_r pⁿ

ⁿC_r =

Its maximum value is closest near n/2

Since n is an odd number, so it have two values:

i.e.

S0, r= 49,50

Mark the correct alternative in the following:A fair coin is tossed 99 times. If X is the number of times heads occur, then P(X = r) is maximum when r is

Mark the correct alternative in the following:
A fair coin is tossed 99 times. If X is the number of times heads occur, then P(X = r) is maximum when r is