 The study analyzed the tensile strength and fracture strength of natural disfibers using various statistical distribution functions, including Weibull 2-parameter distributions, 3-parameter, and bimodal Weibull distributions. Goodness of fit tests such as Kolmogorovsmanov, Anderson-Darling, and chi-square were used to evaluate the accuracy of the theoretical Weibull PDF fits with tensile strength data. The results showed that fibres have good tensile strength and Young's modulus but exhibit high scatters in fracture strength due to defects within the fibre and or on the surface. Microscopic observation revealed that rupture of fibres is governed by two types of defects, rough surfaces formed by spines and internal defects such as connection between fibres. The statistical analysis showed that bimodal Weibull distribution provides larger values for shape and scale parameters compared to single Weibull distribution and fits well with the data strength points. All three goodness of fit tests indicated that the bimodal Weibull model gives a more accurate prediction of data strength compared to unimodal Weibull model. This article was authored by M. E. H. Barali. We are article.tv, links in the description below.