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How many bit strings of length 8 contain exactly three 1's?
56 The number of triples of 1s on 8 bits
How many bit strings of length 10 have more 0s than 1s?
There are 210.
Two matches have the same length as three bottles tops how many bottles top will have the same length as 50 matchsticks?
75 i think
How many positive integers have exactly three digits?
Every number from 100 to 999 inclusive !
How many widths go into length?
length/width
How many bit strings of length 8 contain exactly three 1's?
56 The number of triples of 1s on 8 bits
How many bit strings of length 3 have exactly two 1s?
Three of them ... the binary numbers 3, 5, and 6. 011 101 110
How many strings of three decimal digits Have exactly three digits that are 9?
There can be only one.
How many strings or three decimal digits have exactly two digits that are 9s?
There are 27 of them.
How many strings of three the same digits have exactly three digits that are 9s?
Only 1 exists, and it is "999"
How many strings of three the same digits have exactly two digits that are 4s?
One: 444!
How many strings of three decimal digits Have exactly digits that are 4?
-- 893 of them have no 4's. -- Three of them have exactly one 4: 4xx, x4x, and xx4. -- Three of them have exactly 2 4's: 44x, 4x4, and x44. -- One of them has exactly three 4's: 444. -- None has more than three 4's.
In a bit string length 12 how many have exactly three ones?
12! / 9! / 3!
How many bit strings are there of length eight?
Every bit can either be a 0 or 1. So to find the amount of bit strings of length either, you do 2length to find the amount of bit strings there are of a given length.
How many bit strings of length 10 have?
1024
How many bit strings are there of length ten?
210=1024
How many bit strings are there of length six or less?
The question is exactly equivalent to: "What's the highest binary number with 6 bits ?There are 64, corresponding to the binary numbers from 0 to 63.
