Students with the test scores listed as follows: 29, 81, 68, 43, 65, 45, 69, 78, 81, 72, 88, 99, 95, 24, 77, 52. Partition them into four bins by (1) equal-frequency (equi-depth) method, (2) equal-width method, and (3) an even better method (such as clustering).