Swollen tonsils that are not painful or do not cause other problems do not need to be treated. Your provider may not give you antibiotics. You may be asked to come back for a checkup later. If tests show you do have strep, your doctor will give you antibiotics.
Stratified Random Sampling. Stratified random sampling is a probabilistic sampling option. The first step in stratified random sampling is to split the population into strata, i.e. sections or segments. The strata are chosen to divide a population into important categories relevant to the research interest.
A stratified random sample is a population sample that requires the population to be divided into smaller groups, called ' strata '. Random samples can be taken from each stratum, or group.n a proportional stratified sample, the size of each stratum in the sample is proportionate to the size of the stratum in the population. In a disproportional stratified sample, the size of each stratum is not proportional to its size in the population.