May Joseph
01/19/2023 · Primary School
Random samples of size 64 are drawn from a population with mean 32 and standard deviation 5 . Find the mean and standard deviation of the sample mean. A population has mean 75 and standard deviation 12 .
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متوسط العينة هو 32 والانحراف المعياري لمتوسط العينة هو 0.625. إذا كان حجم العينة هو \(n\)، فإن متوسط العينة هو 75 والانحراف المعياري لمتوسط العينة هو \(\frac{12}{\sqrt{n}}\).
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