The 95% margin of error simony states that there is a 95% probability that the confidence interval contains the true population mean.
<h3>What is a margin of error?</h3>
It should be noted that the margin of error simply means a measurement that accounts for the difference between the actual result and the projected result in a survey sample.
In this case, the 95% margin of error simply states that there is a 95% probability that the confidence interval contains the true population mean. This is the radius of the 95% confidence interval.
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So the second question asks about the perimeter of a rectangular pool and the answer for that is W=87m.
I don’t know about the first question sorry but I’ll try figuring it out.
Answer:
A cylinder's volume is π r² h, and its surface area is 2π r h + 2π r².
The complex conjugate of a + bi is a - bi
So, the complex conjugate of -8 + 12i is -8 - 12i.