This is a math type of question. If I have a set of data for 100 people that falls into four income brackets, but one of the groups is 'No Income Data', what is the method for calculating (projecting) the income bracket for the 15 people with 'No Data' based on the percent/totals of the 3 groups that do have data. For instance, if I have:
25 people with an income less than $15,000 (25%)
50 people with an income $15,000 - $25,000 (50%)
10 people with an income greater than $25,000 (10%)
15 people with no income data (15%)
Thank you for your help with this.