z=\frac{\left(x-\mu\right)}{\frac{\sigma}{\sqrt{n}}}
Z: critical value
\sigma\colon : population standard deviation.
n: sample size
\mu\colon population mean
Frequently asked questions (FAQs)
Math Question: Given a data set {4, 7, 9, 12, 14}, calculate the variance.
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What is the measure of the altitude drawn from the vertex of a triangle to the base, given the length of the base is 10 units and the area is 36 square units?