1. INTRODUCTION

2. ANALYTIC APPARENT AXIS RATIO DISTRIBUTION

3. SDSS SAMPLE SELECTION AND DATA ANALYSIS

3.1. Morphological Classification

3.2. Data Analysis

3.3. Test Sample

4. INTRINSIC AXIS RATIO DISTRIBUTION FOR VOLUME-LIMITED SAMPLE

4.1. Uniform Distribution of Intrinsic Axis Ratio

4.2. Gaussian Distribution of Intrinsic Axis Ratio

5. INTRINSIC AXIS RATIO DISTRIBUTION FOR DIFFERENT LUMINOSITIES

6. DEPENDENCE ON ENVIRONMENT

7. LIMITATIONS

8. CONCLUSIONS AND DISCUSSION