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Sokkalingam, Rajalingam
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Computer Science & IT Engineering

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Journal : Data Science Insights

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A Novel Extension of the Fréchet Distribution: Statistical Properties and Application to Groundwater Pollutant Concentrations Suleiman, Ahmad Abubakar; Daud, Hanita; Othman, Mahmod; Sawaran Singh, Narinderjit Singh; Ishaq, Aliyu Ismail; Sokkalingam, Rajalingam; Husin, Abdullah
Data Science Insights Vol. 1 No. 1 (2023): Journal of Data Science Insights
Publisher : PT Visi Media Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63017/jdsi.v1i1.3

Abstract

In this work, we propose and study a novel generalization of the Fréchet distribution called the odd beta prime Fréchet (OBPF) distribution. This distribution was an extension of the Fréchet distribution by applying the odd beta prime generalized family of distributions. The proposed model can be expressed as a linear mixture of Fréchet densities. The shapes of the density function possess great flexibility. It can accommodate various hazard shapes, such as increasing, decreasing, and reversed J. Some important statistical properties of the OBPF are derived, including the ordinary and incomplete moments, order statistics, and quantile function. We have used the maximum likelihood estimation method to estimate the model parameters. The application and flexibility of the new distribution are empirically proven using groundwater pollution data sets compared to other competing distributions. The new model can be used instead of existing lifetime distributions and is suitable to fit data with right-skewed and left-skewed behaviors
Forecasting the Southeast Asian Currencies against the British Pound Sterling Using Probability Distributions Suleiman, Ahmad Abubakar; Daud, Hanita; Othman, Mahmod; Husin, Abdullah; Ishaq, Aliyu Ismail; Sokkalingam, Rajalingam; Abdullah, Mohd. Lazim; Khan, Iliyas Karim
Data Science Insights Vol. 1 No. 1 (2023): Journal of Data Science Insights
Publisher : PT Visi Media Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63017/jdsi.v1i1.5

Abstract

The current study aimed to identify the most suitable probability distribution function (pdf) for modeling the exchange rates of three countries. Financial data is essential to many people and to the management of a country. Volatility in financial data influences individual and the country's economic growth. This volatility in the exchange rates between the Malaysian Ringgit (MYR), Singapore Dollar (SGD), and Thailand Thai Baht (THB) against British Pound Sterling (GBP) is found to be very high which make it difficult to model and forecast. This is what has necessitated the development of an accurate and reliable approach for assessing and reducing the risks of trading in any of these currencies.
Co-Authors Abdullah Abdullah Abdullah, Mohd. Lazim Daud, Hanita Ishaq, Aliyu Ismail Khan, Iliyas Karim Othman, Mahmod Sawaran Singh, Narinderjit Singh Suleiman, Ahmad Abubakar