Estimation is a fundamental concept in various fields, including statistics, project management, and software development. It involves making an educated guess about a quantity or outcome based on available data or experience. In statistics, estimation often refers to determining parameters of a population, such as the mean, using sample data. In project management, accurate estimation is crucial for budgeting, scheduling, and resource allocation. Despite its importance, many find estimation challenging due to uncertainties and the complexity of tasks. Developing effective estimation skills can lead to improved decision-making and project success across different domains.