Bay of Pigs. Kennedy didnât wait long for the first confrontation of his presidency. Only weeks after he took office he was told of a secret CIA plan to send an army of Cuban exiles to overthrow Fidel Castro and rid the western hemisphere of its first Communist regime.
An enumeration district, as used by the Bureau of the Census, was an area that could be covered by a single enumerator (census taker) in one census period. Enumeration districts varied in size from several city blocks in densely populated urban areas to an entire county in sparsely populated rural areas. Enumeration district maps show the boundaries and the numbers of the census enumeration districts, which were established to help administer and control data collection.
It is important to note that whether a census or a sample is used, both provide information that can be used to draw conclusions about the whole population. What is a census (complete enumeration)? A census is a study of every unit, everyone or everything, in a population. It is known as a complete enumeration, which means a complete count. What is a sample (partial enumeration)? A sample is a subset of units in a population, selected to represent all units in a population of interest. It is a partial enumeration because it is a count from part of the population. Information from the sampled units is used to estimate the characteristics for the entire population of interest. When to use a census or a sample? Once a population has been identified a decision needs to be made about whether taking a census or selecting a sample will be the more suitable option. There are advantages and disadvantages to using a census or sample to study a population: