To make all the curves comparable, he expressed the values of the actual deviations as fractions of a standard deviation, and their frequencies as proportions of their total number.

ECONOMIST: Climate change

Since Jan 2001, Life Science investing as a percentage of total VC investing each quarter has averaged 26% with a standard deviation of only 5%.

FORBES: Chicken Little & Life Science Venture Capital

Table 3 below provides a summary of the annualized standard deviation and returns for each asset class, the weighted average risk and return and the total portfolio risk and return from January 1979 through December 2009.

FORBES: Expert View