I have 3 questions and i need your support and feedback  ASAP

1- When consid ering stand -alon e risk, the return distribu tion of a less risky investment is more peaked (“tighter”) than that of a riskier investment. What shape would the return distribution have for an investment with (a) completely certain returns and (b) completely uncertain returns.

2- Assum e that two investme nts are combin ed in a portfoli o.

a. In words, wha t is the expected rate of return on the portfolio?

b. What condition must be present for the portfolio to have lower risk than the weighted average of the two investments?

c. Is it possible for the portfoli o to have lower risk than that of either investment? d. Is it possible for the portfolio to be riskless? If so, what condition is necessary to create such a portfolio?

10.2 Suppos e that a person won the Flor ida lotte ry and was offered a choic e of two prizes: (1) $500,000 or (2) a coin-toss gamble in which he or she would get $1 million if a head were flipped and zero for a tail. a. What is the expe cted doll ar return on the gamb le? b. W ould the person choose the sure $500, 000 or the gamble? c. If he or she chooses the sure $500, 000, is the person a risk averter or a risk seeker?

10.3 Refer to T able 10. 2

. a. Const ruct an equal -weigh ted (50/50) portfoli o of Inves tments B and C. What is the expected rate of return and standard deviation of the portfolio. Explain your results. b. Construct an equal-weighted (50/50) portfolio of Investments B and D. What is the expected rate of return and standard deviation of the portfolio. Explain your results.

regarding to the problem i need the answer of 10.3 but referring to the problem 10.2

Regards