Question: 5 . This problem involves 8 - digit binary strings such as 1 0 0 1 1 0 1 1 or 0 0 0 0

5. This problem involves 8-digit binary strings such as 10011011 or 00001010(i.e.,8-digit numbers composed of 0's and 1's).(a) How many such strings are there?(b) How many such strings end in 0?(c) How many such strings have 1's for their second and fourth digits?(d) How many such strings have l's for their second or fourth digits?

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