Final answer:
False. Less than 50 percent of marriages begin as cohabitations.
Step-by-step explanation:
False. According to the information provided, it states that approximately 28 percent of men and women cohabitated before their first marriage, while 18 percent of men and 23 percent of women married without ever cohabitating. Additionally, it mentions that only 15 percent of men and women cohabitate only and do not marry. Based on these statistics, it can be concluded that less than 50 percent of marriages begin as cohabitations. Therefore, the statement 'More than 50 percent of marriages begin as cohabitations' is false.