It is known as Statistical Inference.
Statistical Inference
- Without sampling and statistical estimation of the value, some population parameters cannot ever be known. Take customer preference samples, for instance. Since asking everyone would be impractical, choose a sample to identify the parameter.
- A population's mean can be estimated quite well using the confidence interval. It offers a spectrum of values that most likely includes the population mean. The interval gets smaller as sample size increases.
- The method of ordinary least squares is used in a regression equation to develop an equation that best fits the data of an independent variable and dependent variable.
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Answer:
8 because u need to divide 40 by 5
Lines on a railroad track are parallel lines.
Parallel lines are two or more lines that are in the same plane (flat space) and are always equal distances apart from each other at all points on the line.
Answer:
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