Bombardier designs and manufactures trains and planes and relies on large deals from its customers for these high cost products. This series of large contracts makes for a very variable revenue stream, compared with the more even income it derives from long term service contracts. The shae of revenue from services dropped from 21% to 14% between 2007 and 2010 compared to the much higher figure of 51% for Rolls-Royce in 2010. In 2011, an analyst predicts that Bombardier's service share will drop to 13% with standard deviation of 1% in 2014 and and that Rolls-Royce's service share will increase to 54% with a standard deviation of 2%. Assuming you believe the analyst's forecast, what is the probability that

a)Bombardiers service share will be lower in 2014 than in 2010
b)Rolls-Royce's service share will be higher in 2014 than in 2010
c)State assumptions