June Has Obtained a Sample of 150 People from Their $\Sigma X^{2}$

question 23

Essay

June has obtained a sample of 150 people from their school records about their career aptitude.She has calculated $\Sigma X^{2}$ = 867 and $\left(\sum X\right)^{2}$ = 38,427.Calculate the sample standard deviation for these data.

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Definitions:

Direction

In the context of statistics, it refers to the nature of the relationship between variables, indicating whether it is positive or negative.

Correlations

Statistical measures that describe the extent to which two variables change together.

Exploratory Technique

Methods or approaches used in initial research efforts to understand data, identify patterns, or formulate hypotheses, without having predetermined outcomes.