AIWMI Exam CCRA-L2 Topic 4 Question 30 Discussion

Mr. Gopi, while teaching the CCRA course to students described Altman's Model and stated that following variables do exist for Altman's Model:

1. total debt/total assets,

2. retained earnings/total assets.

3. earnings before interest and taxes/total assets,

4. market value equity/book value of total liabilities,

5. sales/total assets

Exactly how many variables are incorrectly identified?