How many bits string of length 4 are possible such that they contain 2 ones and 2 zeroes?
A. 4
B. 2
C. 5
D. 6
Answer:D
How many bits string of length 4 are possible such that they contain 2 ones and 2 zeroes?
A. 4 B. 2 C. 5 D. 6
Explanation: The strings are {0011, 0110, 1001, 1100, 1010 and 0101}.