Statistics is a very important discipline in science due to the occurrence of variation. Variation is seen in virtually all our observations: two consecutive spins of a roulette wheel will seldom be identical. But variation can also clearly be seen in biology: the differences in length among individuals of the same age, the differences in blood pressure of a selected group of people at a certain time, and the response of patients (and healthy people) to a new drug. It is therefore imperative that scientific findings, such as "the new drug works better than the old drug", are tested for statistical significance and are not due to chance. In-Silico offers several different online applications to determine the statistical significance of your observations.