Question: Consider all bit strings of length four. a) How many possible values are there without restriction? b) How many begin with 1? c) How

Consider all bit strings of length four. a) How many possible values are there without restriction? b) How many begin with 1? c) How many begin with 1 and end with 1? d) How many begin with 1 or end with 1? 2. (8 pts) Suppose that a "word" is any string of four letters. Repeated letters are allowed. For our purposes, vowels are the letters a, e, i, o, and u. a) How many words are there? Note - these don't have to be valid English words. b) How many words have no vowels? c) How many words have only vowels? d) How many words begin with a vowel? e) How many words have exactly one vowel?

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