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:<math>F(m;c,p) = \sum_{i=0}^{ m } {c\choose i}p^i(1-p)^{c-i}</math> | :<math>F(m;c,p) = \sum_{i=0}^{ m } {c\choose i}p^i(1-p)^{c-i}</math> | ||
This is the formula for [[pack year]]s: | |||
:<math>\text{1 py} = \frac{\text{1 pack}}{day} \times \text{1 year}</math> | |||
The [[RCB index]] is defined as: | |||
:<math>RCB = 1.4 \ ( f_{inv} \ d_{prim} )^ {0.17} + \lbrack{ \ 4 \ (1 - 0.75^{LN}) d_{met}} \rbrack ^{0.17}</math> | |||
==See also== | ==See also== | ||
*[[Mathematics]]. | *[[Mathematics]]. | ||