Our main goal in the creation of this book titled "International Research in Math Sciences V" is to bring together current studies in different disciplines such as statistics, biostatistics, mathematics, and chemistry and present them to the scientific world. I think readers will go on a journey that will increase their understanding of the topics and pique their curiosity in a variety of scientific fields as they read this book. I hope that the book will be useful for academics, researchers and all readers, and contribute to their studies.