Question

How many bit strings of length 7 begin with a 10
or end with 01?

Answer 1

Answer- please mark as brainlist answer!!

Step-by-step explanation:

by your correct analysis, there are 27 bit strings that start with 1. similarly there are 26 bit strings that end with 01. The sum 26+ 27 double- count the bit strings that start with 1 and end with 01.

I hope this will help you!!

Answer 2

Step-by-step explanation:

By your correct analysis, there are 27 bit strings that start with 1. Similarly, there are 26 bit strings that end with 01.

Hope it helps