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what is sample mean x bar. The sample mean symbol is x pronounced x bar. The sample size is constant.
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The sample mean is an average value found in a sample. EbarXEleftdfracX_1X_2cdotsX_nnright Then using the linear operator property of expectation we get. Follow answered 9 hours ago.
Follow answered 9 hours ago.
915k 12 12 gold badges 75 75 silver badges 134 134 bronze badges endgroup Add a comment Your Answer. If X_1 X_2 ldots X_n are observations of a random sample of size n from a Nmu sigma2 population then the sample mean. Starting with the definition of the sample mean we have. Sample Mean Population Mean.
