Use the translation formula (X + 9, y + 6) and translate the figure ABCD where A(-6,-3);B(-3,-3);C(-3,-6):D(-6,-6). What are the
1 answer:
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Answer:
Step-by-step explanation:
We have been given an inequality and we are asked to solve our given inequality.
Upon dividing both sides of our inequality we will get,
Therefore, x should be greater than or equal to -5. We can write our answer in internal notation as:
Parameterize the surface of interest 
by 
with ![u\in[0,1]](https://tex.z-dn.net/?f=u%5Cin%5B0%2C1%5D)
and ![v\in[0,2\pi]](https://tex.z-dn.net/?f=v%5Cin%5B0%2C2%5Cpi%5D)
.
Then the area is given by the surface integral
Then the area is given by the surface integral
Answer:
Step-by-step explanation:
Data given
represent the sample mean obtained
represent the sample deviation obtained
represent the true mean (variable of interest)
n=400 represent the sample size selected
Solution to the problem
The best estimator for the true mean is given by the sample mean
, and the reason is: If we assume that in tha random sample
each observation follows a normal distribution like this:
Then when we find the expected value for the sample mean we have this:
If we use the properties of the expected value we have:
And since the expected value of each observation is the same we have:
So then we have that the best estimator for the population mean is given by: