Can someone create two expressions that are equivalent to 3(4j + 4 + j). Please show all steps in your work.
2 answers:
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We can rewrite the asked question like this:
wherein X_1 and X_2 are random variable with the same given normal distribution. Then mean of
is zero and the variance
can be computed like this:
So, the random variable
follows a normal distribution
with means 0 and standard deviation 9.6.
The median of the law N(0,9.6) is 0.
So the expected difference of the score is 0.
wherein X_1 and X_2 are random variable with the same given normal distribution. Then mean of
can be computed like this:
So, the random variable
with means 0 and standard deviation 9.6.
The median of the law N(0,9.6) is 0.
So the expected difference of the score is 0.