International Journal of Trend in Scientific Research and Development

In this paper we develop the mathematical model for awareness corona virus disease 2019. The parameter specified I, C, L and t. It has been observed that the chain of infected person depends on lockdown and social distance. Again we observed that the total suspected person depends upon infected chain person and lockdown. 

This work provides information on the survival times of a cohort of infected individuals. The mean survival time was obtained as 22.579 months from the resultant estimate of the shape parameter =1.156 and scale parameter =0.0256 from Weibull 7 simulation of n = 500. Confidence intervals were also obtained for the two parameters at = 0.05 and it was found that the estimates are highly reliable. 

"The year 2020 has indeed experienced a shaking pandemic of the modern age. While all the concerned departments all over the world are religiously doing their duties to contain the spread of the infection, it was thought of to put forward a paper on the understanding of various graphs presented by the authorities from time to time which indicate the total number of cases, number of active cases, number of recoveries and number of deaths. This paper deals with the understanding of two main types of plots i.e. linear and logarithmic and shall highlight details of various functions and their trends. A phrase, Flattening the curve has been in use these days. This paper shall first build a premise and then explain the qualitative meaning of the phrase in the context of the plots. Various psychological aspects shall also be appended so that the reader can be benefitted and can be made ready to understand the current affairs. 

There are many events in daily life where a queue is formed. Queuing theory is the study of waiting lines and it is very crucial in analyzing the procedure of queuing in daily life of human being. Queuing theory applies not only in day to day life but also in sequence of computer programming, networks, medical field, banking sectors etc. Researchers have applied many statistical distributions in analyzing a queuing data. In this study, we apply a new distribution named Exponential Gamma distribution in fitting a data on waiting time of bank customers before service is been rendered. We compared the adequacy and performance of the results with other existing statistical distributions. The result shows that the Exponential Gamma distribution is adequate and also performed better than the existing distributions. 

The Ready made garments RMG are the major source of export income for Bangladesh. This study is an attempt to measure the change, instability, significance of RMG export to total export and relationship between RMG export and total export of Bangladesh based on secondary data during the period FY1997 98 to FY2016 17 collected from Export Promotion Bureau. Different statistical tools have been used to perform the analysis. The analysis reveals that the RMG export and total export of Bangladesh has increased and total export fully depends on RMG export. The analysis also reveals that the RMG export and total export of Bangladesh are not stable during the study period but its increasing trend is good sign for Bangladesh. Therefore, researcher, policy makers and government should give proper attention to develop technology to increase production of ready made garments and develop new market to increase ready made garments export that raises the total export of Bangladesh. 

In this research paper, we analyzed the reliability measures of two units identical system who's each unit has operative and complete failure modes. Repairing of the failed unit is done by a server who grabs some time to turn up at the system. Also, the server makes alternate of the failed unit by fresh ones whenever he is not capable to fix the failed unit in a pre precise time. The expressions for different consideration of vital signs have been derived using semi Markov process and RPT. Using arbitrary distributions to all random variable, some numerical results have been obtained to depict the behavior of MTSF, availability and profit with respect to the replacement rate.