B) What is the volatility (standard deviation) of a portfolio that consists of an equal investment in 15 firms of type I?

Consider an economy with two types of firms, S and I. S firms all move together. I firms move independently. For both types of firms there is a 36% probability that the firm will have a 16% return and a 64% probability that the firm will have a -16% return. What is the volatility (standard deviation) of a portfolio that consists of an equal investment in: a. 29 firms of type S? b. 29 firms of type I? a. What is the volatility (standard deviation) of a portfolio that consists of an equal investment in 29 firms of type S? Standard deviation is %. (Round to two decimal places.)