The special issue of Jahangirnagar University Journal of Statistical Studies (JUJSS) is to celebrate the 50-year founding anniversary of the Department of Statistics which is the first four founding departments of Jahangirnagar University. This milestone anniversary also coincides with two other memorable anniversaries: the 100-year birth celebration of the father of the nation Bangabandhu Sheikh Mujibur Rahman and the 50th year of independence of Bangladesh. The department of Statistics and JUJSS sincerely acknowledge the funding support from the Jahangirnagar University and the Professional Master Program in Applied Statistics and Data Sciences (PMASDS-JU) program. Department and the JUJSS also sincerely acknowledge the dedicated effort of the editorial board members, reviewers, and contributors.

EDITORIAL BOARD

Editor
Md. Abdus Salam, Ph.D
Professor, Department of Statistics, Jahangirnagar University, Savar, Dhaka, Bangladesh.
salam@juniv.edu

Executive Editor
Mohammad Alamgir Kabir, Ph.D
Professor & Chairman, Department of Statistics, Jahangirnagar University, Savar, Dhaka, Bangladesh.
alamgir@juniv.edu

Overseas Editor
Mir Masoom Ali, Ph.D
George and Frances Ball Distinguished Professor of Statistics Emeritus and Professor Emeritus of Mathematical Sciences, Ball State University, USA
mirmasoom@gmail.com

Members
Kazi Saleh Ahmed, Ph.D
Retired Professor, Department of Statistics, Jahangirnagar University, Savar, Dhaka, Bangladesh
ksahmed@gangla.net

Swapan Kumar Dhar, Ph.D
Retired Professor, Department of Statistics, Jahangirnagar University, Savar, Dhaka, Bangladesh
skd@juniv.edu

M. Mazibar Rahman, Ph.D
Professor, Department of Statistics, Jahangirnagar University, Savar, Dhaka, Bangladesh
mazibm@juniv.edu

Ajit Kumar Majumder, Ph.D
Professor, Department of Statistics, Jahangirnagar University, Savar, Dhaka, Bangladesh
ajit@juniv.edu

Syeda Shahanara Huq, Ph.D
Professor, Department of Statistics, Jahangirnagar University, Savar, Dhaka, Bangladesh
sshuq@juniv.edu

Mohd. Muzibur Rahman, Ph.D
Professor, Department of Statistics, Jahangirnagar University
muzib378@juniv.edu

Shahjahan Khan, Ph.D
Professor, School of Mathematics, Physics and Computing, University of Southern Queensland, Australia
usq.edu.au

B. M. Golam Kibria, Ph.D
Professor, Department of Mathematics and Statistics, Florida International University, Miami, Florida, USA kibriag@fiu.edu