生物统计学将统计推理和方法应用于与健康相关的领域，包括公共卫生，医学和生物学。作为公共卫生的核心学科之一，它涉及研究的定量方面，涵盖研究的设计，进行，分析和解释。生物统计学方法被广泛用于各种公共卫生活动，例如评估疾病的病因假设。作为跨学科团队的一部分，生物统计学家与健康相关领域的从业者和研究人员合作，提供定量专业知识。生物统计学家在各种类型的职业中找到工作。组织和机构，包括政府，研究中心/团体以及参与卫生的私营部门。
Biostatistics applies statistical reasoning and methods to health-related fields including public health, medicine, and biology. As one of the core disciplines of public health, it is concerned with quantitative aspects of investigations, covering design, conduct, analysis, and interpretation of studies.Biostatistical methods are used for a wide range of public health activities such as assessing etiological hypotheses of diseases and injuries, evaluating effectiveness of intervention programs/policies/trials, and monitoring and detecting health trends of population.As part of interdisciplinary teams, biostatisticians collaborate with practitioners and researchers of health-related fields providing quantitative expertise.Biostatisticians find employment in various types of organizations and settings, including governments, research centres/groups, and private sectors involved in health.