The ratio to be applied to all male lives is:
where Z is the ratio of male lives to total lives at pivotal age of 45.
Acceptable values of Z are .2, .4, .5, .6, and .8. Z values of 0 and 1.0 may be used for certain policies converted from group insurance and for other policies issued after January 1, 1985, only if the proportion of persons insured is 90% or more of one sex or the other.
The ratio to be applied to female lives is Click to view image
211 CMR, § 32.06