Listen NCERT Audio Books to boost your productivity and retention power by 2X.
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
P(x=r)= nCr pr qn-r
P(x=r)= nCr pn
Its maximum value is closest near n/2
Since n is an odd number, so it have two values:
S0, r= 49,50