You invest $200 in a stock that has a 10% chance of a 1% return, a 40% chance of a 4% return and a 50% chance of an 8% return. What is your expected return after one year?

answer; i believe the correct answer is (117);

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."

answer; validity;

answer; positive reinforcement;