Rank the following three stocks by their level of total risk, highest to lowest. Rail Haul has an average return of 11 percent and standard deviation of 37 percent. The average return and standard deviation of Idol Staff are 14 percent and 40 percent; and of Poker-R-Us are 8 percent and 30 percent.

Rank the following three stocks by their risk-return relationship, best to worst. Rail Haul has an average return of 11 percent and standard deviation of 22 percent. The average return and standard deviation of Idol Staff are 14 percent and 32 percent; and of Poker-R-Us are 8 percent and 18 percent.