Given the information on the table below, calculate expected rate of return and standard deviation of stock returns of iLight Inc. Explain the meaning of the numbers youve obtained from the calculations.

Demand for the company's products Weak Below average Average Above average Strong Probability of this Rate of return if this demand occurs demand occurs 0.1 -30% 0.2 -5% 12% 0.4 0.2 17% 25% 0.1