Answer: SAMPLE.
Explanation: He obviously cannot study every 12th grader, so instead he will select a smaller SAMPLE of seniors to study.
Sample in research methodology is defined as a subset of a population selected for measurement, observation or questioning, to provide statistical information about the population. A sample is referred to as an unbiased estimator of a population.
Answer:
Explanation:
Boxer rebels attempted to drive out foreigners from China, they detested foreigners and claimed they did not obey the customs of China. Majorly missionary Christians and new Chinese Christian converts were attacked.
The rebellion formed in 1899 and got heated around 1900. They attacked suspected Chinese Christians due to the fact that they felt they did not obey the Chinese religion and rites. They attacked Christian worship places like the Roman Catholic Church in Beijing and killed foreigners such as the German minister and other foreign ministers.
Can recognize themselves in a mirror.
Answer:
A. Missouri River
Explanation:
Missouri River=2,341 mi (the longest)
Red River =1,360 mi
Arkansas River=1,469 mi
Rio Grande River=1,885 mi