t m m calculate how far the evolution without selection is from 4 bits m * 0.11092 is the MEAN m * 0.29928 is the STANDARD DEVIATION : 0.11092 0.29928 p . m standard deviations from 4.0 bits: 4.0 z p m probability: g n : p m m Give lots of decimal places . 50 d 50 w :p q