Question: Suppose that a single character is stored in a computer using eight bits. a . How many bit patterns have exactly three 1 ' s

Suppose that a single character is stored in a computer using eight bits.
a. How many bit patterns have exactly three 1's?
b. How many bit patterns have at least two 1's?
Hint. Think of the set of positions that contain a 1 to turn this is into a question about sets.
Suppose that a single character is stored in a computer using

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