“Improve the Fitment Quality of the Binary Response Model With Practical Application to Those Infected With the Covid-19 Epidemic”. 2022. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ) 52 (2): 20-31. https://doi.org/10.55562/jrucs.v52i2.539.