GRE
The standard deviation of the distribution of X
The standard deviation of the distribution of Y
The variance of the numbers 3, 9, and 15
9 times the variance of the numbers 1, 3, and 5
$$2w^3$$
$$3w^2$$
$$\frac{\sqrt[3]{54x^5}-\sqrt[3]{16x^5}}{x(\sqrt[3]{128x^2}-\sqrt[3]{16x^2})}$$
$$\frac{1}{2}$$
y-x
7
The remainder when 2n is divided by 7
The remainder when n is divided by 14
The perimeter of $$JKLM$$
The perimeter of $$QRST$$
The least possible value of n
49
The average (arithmetic mean) of the values in the list
3.45
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