Your marketing research team has identified four distinct groups of people (Type A, B, C, and D, where D represents “all others”) according to personality traits. You figure that market penetration for a new product will be highest among Type A personalities, with 38% purchasing the product within two years. Similarly, for Types B, C, and D, the market penetration will be 23%, 8%, and 3%, respectively. Assume that the personality types represent 18%, 46%, 25%, and 11%, respectively, of your target population. What overall market penetration should you expect among your target population?