Register
How many bit strings of length 12 contain exactly three "1s"
123k views
3 votes
How many bit strings of length 12 contain exactly three "1s"

User Federico Ponzi
by
7.6k points

2 Answers

4 votes
i  am     not     sure    of    the     answer    
User Alex Brasetvik
by
8.3k points
6 votes
There are
\dbinom{12}3=220 such strings, provided that the ordering of the bits doesn't matter.
User KernelM
by
7.9k points
← Prev Question Next Question →

Related questions

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!