Math test

Inline: \(a^2 + b^2 = c^2\)

Display:

\[E = mc^2\]

Inline with subscripts: \(\Theta_1\) and \(\Theta_2\)

Dollar signs: the cost is $150 and the benefit is $298.

Mixed: the sample mean has variance \(\Theta_2/n\) and costs $2 per observation.