a) Count the number of distinct phone numbers, if a valid phone number must have the format NXX-NXX-XXXX where N can be any integer between 3 and 8 inclusive, and X can be any integer between 0 and 9 inclusive. b) How many bit strings of length 20 begin with 11 and end with 00?
a) Count the number of distinct phone numbers, if a valid phone number must have the format NXX-NXX-XXXX where N can be any integer between 3 and 8 inclusive, and X can be any integer between 0 and 9 inclusive. b) How many bit strings of length 20 begin with 11 and end with 00?
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 35SE: The set, S consists of 900,000000 whole numbers, each being the same number of digits long. How many...
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a) Count the number of distinct phone numbers, if a valid phone number must have the format NXX-NXX-XXXX where N can be any integer between 3 and 8 inclusive, and X can be any integer between 0 and 9 inclusive.
b) How many bit strings of length 20 begin with 11 and end with 00?
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