Role and Importance of Data in Public Health. Address the basic concepts, methods, and tools of public health data collection, use, and analysis and why evidence-based approaches are an essential part of public health practice.
Every language in the world-from English to Mandarin-evolved from a prehistoric 'mother tongue' first spoken in Africa tens of thousands of years ago, a new study reveals.
Definition. First official language spoken is specified within the framework of the Official Languages Act. It refers to the first official language (. English or French) spoken by the person. Person refers to an individual and is the unit of analysis for most social statistics programmes.