There are 256 bytes (8-bit strings), corresponding to the decimal numbers
zero through 255.
Only the byte representing zero is composed of all zeros. All of the remaining
255 bytes have at least one ' 1 '.
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in a textbook I read it says 72
If it is a fair coin, the probability of getting at least one Head from 3 flips is 7/8If it is a fair coin, the probability of getting at least one Head from 3 flips is 7/8If it is a fair coin, the probability of getting at least one Head from 3 flips is 7/8If it is a fair coin, the probability of getting at least one Head from 3 flips is 7/8
p(one) = 1/6 p(not one) = 5/6 p(at least one) = 1 - p(failure) p(failure) = (4C0)(5/6)^4 = 1 x 625/1,296 = 0.48 p(at least one) = 1 - 0.48 = 0.52
Literal Equation
If five cards are drawn from a deck of cards without replacement, what is the probability that at least one of the cards is a heart?