Another approach is quota sampling; in this method, our selection is guided by creating a sample similar to the population. For example, assuming 30% of individuals with Covid-19 live in poverty, to ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果当前正在显示可能无法访问的结果。
隐藏无法访问的结果