a group of researchers investigated the effects of two vocabulary learning strategies on word retention two weeks later. in this example, learning strategy is the variable and word retention is the variable.

Which questions should robert ask himself before investing the $10,000 he inherited? check all that apply. how am i protected as an investor? are my friends investing in a similar way? what guarantees are in place so i make money? what taxes will i have to pay on this investment? how do the risks compare to the potential gains? what are the chances that the investment will fail?