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Get Ready for Statistics: Corequisites

Arithmetic with Negative Numbers

Problem 19

Evaluate the expression \(\dfrac{s_1^2}{n_1}+\dfrac{s_2^2}{n_2}\) for the given values of the variables.

\(s_1=3\), \(s_2=4\), and \(n_1=n_2=100\)

\(s_1=1.2\), \(s_2=1.6\), and \(n_1=n_2=100\)

\(s_1=2.5\), \(s_2=3.8\), \(n_1=200\) and \(n_2=100\)

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