There is one error in one of five blocks of a program. To find the error, we test three randomly selected blocks. Let X be the n

Question

Artist 52 [7]

3 years ago

10

There is one error in one of five blocks of a program. To find the error, we test three randomly selected blocks. Let X be the n

umber of errors in these three blocks. Compute E(X) and Var(X).

Mathematics

1 answer:

Molodets [167] · Answer 1 · 2022-01-15T19:19:37+03:00

Molodets [167]3 years ago

7 0

<span>The probability, or expectation value for X in a block, equals the number of occurrences of X in all the blocks divided by the total number of blocks

</span>

well E(X)=µ and

Var(X)=E[(X-µ)^2]