it would be A or D for the math of d=-2
There are
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ways of selecting two of the six blocks at random. The probability that one of them contains an error is
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So

has probability mass function
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These are the only two cases since there is only one error known to exist in the code; any two blocks of code chosen at random must either contain the error or not.
The expected value of finding an error is then
Its A 0.125 because 0.125×8=1.000 or 1 full
170 divided by 80 is 2.125, so 80 goes in 170, 2.125 times
Answer:
MY friend the anwser is A I hope this will help plz mark me brainliest
Step-by-step explanation: