can regression imputation be done with age and income variables? how to correct missing value what does missing value mean when are age and income variables missing when a regression imputation is applied what to use in missing value analysis what is the missing value for age should the age and income be reported as missing data why is age missing in regression analysis? why age is missing in regression how to find % of missing value for age why do regressions imputations fail age missing value when to consider age as missing is age a missing variable in regression analysis? what is missing value for age what is missing value in regression what is missing value and regression imputation age missing value treatment how to find the missing value for age