"A man throws a fair coin number of times and gets 2 points for each head and 1 point   for each
Channel: Doubtnut
Date: 2020-07-05

"A man throws a fair coin number of times and gets 2 points for each head and 1 point
 
  for each tail the probability that he gets exactly 6 points is
 
 (1)`(21)/(32)`
 
  (2) `(13)/(64)`
 
  (3) `(43)/(64)`
 
  (4) `(23)/(32)`"