Describe 7 non-experimental methodologies and a precaution? ?

There are three broad types of nonexperimental research. Single-variable research focuses on a single variable rather than a relationship between variables. Correlational and quasi-experimentalresearch focus on a statistical relationship but lack manipulation or random assignment.

Stealthily, eerily, nervously, fearfully, excitedly, sheepishly, immediately

It’s letter b because the area of the trapezoid is 72