Quartiles Divide a Distribution into Ten Equal Parts

question 1

True/False

Quartiles divide a distribution into ten equal parts.

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Definitions:

Mound-Shaped

A description of a graph of a dataset that has a symmetrical bell-shaped appearance, reflecting a normal distribution.

Standard Deviation

An indicator of the degree of variability or spread within a dataset, reflecting the extent to which the data points diverge from the average value.

Variance

An index of variability in a set of data, established by taking the average squared deviation from the mean.

Tchebysheff's Theorem

A theorem that states for any real numbers k > 1, at least (1-1/k^2) of the data values fall within k standard deviations of the mean for any distribution.