A stock has an annual expected return of 15% and a standard deviation of 50%. An investor in this stock can expect to lose 10% of their investment or more about once every _____ year(s). (Requires use of cumulative normal density table)

IIIs vavie shuws ule provavinty Liv(u) un voserving a value iess man or equal w n. For example if d is .24, then N(d) is .4052