Formula

A formula can be a useful thing in medicine.

Here is one - the cumulative distribution function of the binomial distribution:

$F(m;c,p)=\sum _{i=0}^{m}{c \choose i}p^{i}(1-p)^{c-i}$

This is the formula for pack years:

${\text{1 py}}={\frac {\text{1 pack}}{day}}\times {\text{1 year}}$

The RCB index is defined as:

$RCB=1.4\ (f_{inv}\ d_{prim})^{0.17}+\lbrack {\ 4\ (1-0.75^{LN})d_{met}}\rbrack ^{0.17}$

See also

• Mathematics.

External

• Formula Help (WP).