Answer:

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution
and for this case we know that the distribution is given by:

And the standard error would be:

And replacing we got:

Step-by-step explanation:
For this case we know the population deviation given by:

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution
and for this case we know that the distribution is given by:

And the standard error would be:

And replacing we got:

Answer:
160D^2
Step-by-step explanation:
Answer:
sorry I forgot try googling it
83.57 i believe because you would round the 43 down so it would stay the same
Answer:
D
Step-by-step explanation:
A cube is something that has the same length on all sides, so therefore, multiplying one of the side lengths by 3 gets you the answer.