The number of different bit strings of length 7 which comprises the string 0000 is equal to 32.
A string can be defined as a data type which is commonly used for data values containing ordered sequences of characters.
In Computer programming, a string can either contain a single character or be entirely empty. "Hello world" is a typical example of a string in computer programming.
By applying the multiplication rule, the number of ways in which this set of events can happen (occur) is given by:
N = n(X) × n(Y) × n(Z)
Therefore, the number of different bit strings of length 7 which comprises the string 0000 is given by:
N = 4 × (2 × 2 × 2 × 1)
N = 4 × 8
N = 32.
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