asked 74.4k views
5 votes
How many 6-digit binary strings have the property that their second and fourth digits are 1s?

asked
User Vistari
by
7.7k points

1 Answer

3 votes
Fixing two of the bits leaves four remaining positions, each with two possibilities (0 or 1), so there are
2^4=16 possible strings.
answered
User Vadim Berman
by
7.8k points
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.