9. Genetics Experiment A genetics experiment involves offspring peas in groups of four. A researcher reports that for one group, the number of peas with white flowers has a probability distribution as given in the accompanying table.

x P(x)

0 0.4219 1 0.4219 2 0.1406 3 0.0156 x P(x)

0 0.502 1 0.365 2 0.098 3 0.011 4 0.001 x P(x)

0 0.04 1 0.16 2 0.80 3 0.16 4 0.04 5-2 Random Variables 211