生物统计学
Statistics
is the introduction of mathematical language into specific fields of
scienc
.It is an art and science for collecting， analyzing, showing and interpreting data。
Sources of randomness
The problem involves a large number of data，
can not
be fully studied， can only be used in a "certain way" to investigate part of it。
The random error of the experiment， that is, the error caused by the uncontrolled,
unrecongnized
factors in the test process。
Two major factions
Classical
The probab ...