The Twin Sinha Brothers (Bimal and Bikas) Felicitation Issue Volume 21(2), November 2021 Contents Editorial Note The Sinha Brothers (Bimal and Bikas) – The Twin Statisticians Environmental Statistics – A Pet Subject of Sinha Brothers -T. J. Rao Visualizing the Centre of Gravity using the (Empirical) Cumulative Distribution Functions -Jyotirmoy Sarkar and Mamunur Rashid Robustification of Quadratic Discriminant Analyzer and Its Application for Gene Expression Data Analysis -Md. Matiur Rahaman and Md. Nurul Haque Mollah A New Lomax Type Distribution: Properties, Copulas, Applications, Bayesian and Non-Bayesian Estimation Methods -M. Masoom Ali, Haitham M. Yousof and Mohamed Ibrahim Bayesian Analysis of Singly Imputed Partially Synthetic Data generated by Plug-in Sampling and Posterior Predictive Sampling under the Multiple Linear Regression Model -Abhishek Guin, Anindya Roy and Bimal Sinha Comparison on Some Modified Confidence Intervals for Estimating the Process Capability Index Cp: Simulation and Application -B. M. Golam Kibria and Wenziying Chen Interval Estimation of the Intraclass Correlation in a Nonlinear Mixed Effects Model -Xiaoshu Feng, Thomas Mathew and Kofi Adragni Application of Quantile Transform Method while Simulating Random Variates from Densities with Non-Closed Form of Cumulative Distribution Function -Anamul Haque Sajib, Syed Ehsan-Ar- Rafi and Sabina Sharmin A Clinical Trial Evaluating Pulsed Electro-Magnetic Field Therapy on Osteoarthritis Patients: Modeling Ordinal Longitudinal Responses -Atanu Biswas, Rahul Bhattacharya and Krishna Sankar Ganguly Analysis of Longitudinal Teenage Pregnancy Data of Mpunkunyoni, Kwazulu-Natal using Generalised Linear Mixed Model -Marothi P Letsoalo, Yehenew G Kifle, Maseka Lesaoana and Christel Faes A Study of Adolescent Growth in Kolkata and its Determinants -Susmita Bharati, Manoranjan Pal, Md. Golam Hossain and Premananda Bharati Prevalence of Thinness and Associated Factors among 3 to 12 Year Old Boys of Purba Medinipur District, West Bengal, India -Pikli Khanra, Raja Chakraborty and Kaushik Bose Improved Randomized Response Model for Estimating the Population Proportion -Sunil Kumar, Sanam Preet Kour, Monica Choudhary and Rahul Sharma List of Reviewers of the Issue Call for Papers
