Help me answer these questions. "In your own words, list and discuss the 6 steps to designing a statistical study" and "Explain the difference between an observational study and an experiment"

Nikolas calculated the volume of the prism. his work is shown below.

Examine the paragraph proof. which theorem does it offer proof for? prove jnm – nmi according to the given information in the image. jk | hi while jnm and lnk are vertical angles. jnm and lnk are congruent by the vertical angles theorem. because lnk and nmi are corresponding angles, they are congruent according to the corresponding angles theorem. finally, jnm is congruent to nmi by the transitive property of equality alternate interior angles theorem gorresponding angle theorem vertical angle theorem o same side interior angles theorem

Why is causation so much more difficult to prove than correlation?