Bms 206 biostatistics Bms 206 biostatistics BMS 206 BIOSTATISTICS LESSON 9 PROBABILITY Probability is the likelihood or chance of an event taking place. Its also a function defined on the events of the sample space (S) satisfying specific conditions such as P(Ei )  0 P(Ei )  1 P(S)  1 SAMPLE SPACE AND EVENTS Scientific experiments are performed in order to generate low data useful in drawing conclusions. In most cases the result of experiment depends on chance and cannot b...