How-many-bit-strings-of-length-11-have-exactly-three-consecutive-1s-

Question Number 203833 by depressiveshrek last updated on 29/Jan/24

How many bit strings of length 11 have

exactly three consecutive 1 s ?

Answered by nikif99 last updated on 30/Jan/24

S u c h a t y p i c a l b i t s t r i n g o f l e n g t h = 11 i s

000 \underset{p o s = 4}{\underset{⏟}{111} 00000}

C a s e s o f p o s i t i o n i n g^{'} 111^{'} a r e 9

s t a r t i n g a t p o s i t i o n s 1 - 9 .

Facebook Tweet Pin