Seven unbiased coin are tossed. What is the probability of getting almost
one head?
Choose the correct choice from the following choices.
A) 1/2  B) 1/4  C) 127/128  D) 127/5  E) 127/6
Here n(S)= 2^7   Let E=event of getting atmost one head =   n(E)= 127   P(E)=n(E)/n(S)=127/128   Answer option 127/128)
<result>C</result>
Seven unbiased coin are tossed. What is the probability of getting almost
one head?