In order to obtain a sample of voters in Pennsylvania, a simple random sample of 10 counties is selected. From each of the selected counties, 10 precincts are chosen at random. Finally, from each of these 100 precincts , a simple random sample of 20 voters students is selected. Thus, the final sample consists of 2,000 voters.This is an example of:   stratified sampling.   multistage sampling.   convenience sampling.   simple random sampling.   none of the above.

In order to obtain a sample of undergraduate students in the United States, a simple random sample of 10 states is selected. From each of the selected states, 10 colleges or universities are chosen at random. Finally, from each of these 100 colleges or universities, a simple random sample of 20 undergraduate students is selected. Thus, the final sample consists of 2,000 undergraduates.This is an example of which type of sampling strategy? Simple random sampling Stratified sampling Convenience sampling Multistage sampling

Which of the following is an example of stratified sampling? A sample of 37 people who came to speak before the city council on the proposed water conservation plan were surveyed. The human resources department of a large retail chain wanted to assess the job satisfaction of the retail workers. The department chose 25 of the company's stores at random, and used all of the workers in those 25 branches as the subjects for the study. Proponents of a local ballot measure conduct a survey of the city by randomly selecting 100 potential voters from each of its 18 zip codes. A poll asked a random sample of 1,327 adults whether they supported stronger gun control measures. In order to assess public attitudes on good nutrition the the first 40 people to leave a large grocery store were interviewed.

A researcher interviewed all the top 10 Grade 12 students in each of fifteen randomly in selected public schools in Pasig City. What sampling technique is being used in this scenario?a.Stratified random samplingb.Systematic Random Samplingc.Simple Random Samplingd.Cluster Sampling

In the context of election polling in the Philippines, what is a "sample"? The group of voters who favor various candidates. The percentage of voters who participate in the election. A few hundred or a few thousand voters selected for an opinion poll. The entire population of voters in the country.

Stratified random sampling is a method of selecting a sample in whichGroup of answer choicesthe population is first divided into groups, and then random samples are drawn from each groupvarious strata are selected from the sampleNo answer text provided.the sample is first divided into groups, and then random samples are taken from each group