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how to find the sample mean of a data set. Calculating sample mean is as simple as adding up the number of items in a sample set and then dividing that sum by the number of items in the sample set. This means there should be 7 values in the sample data set.
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M is the population mean. N is the sample size. When calculating the z-score of a sample with known population standard deviation.
An estimate of the population mean is the sample mean.
We can calculate its mean by performing the operation. When you have raw data points first you need to find the standard deviation and sample mean of the data. Let us first calculate the value of Trimmed count g where g refers to number of values to be trimmed from the given series. In these z-score formulas.
