Biostatistics — 7-topic bundle

Biostatistics is simply statistics applied to biology and health. It's how we analyze data from experiments, clinical trials, and population surveys to understand health, disease, and treatments. It helps us answer questions like: "Is this new drug effective?", "What causes this disease?", or "How common is this condition?".

When you're doing a survey, you're usually trying to understand something about a population – that's the entire group of individuals or items you're interested in. For example, all adults in your city, or all medical records in a hospital. However, studying an entire population is often impossible, too expensive, or too time-consuming. That's why you use a sample – a smaller, manageable subgroup drawn from the population.