Why is canadian food inspection agency important to canadians' daily lives?

Donald is studying the eating habits of all students attending his school. he samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. he then collects data from the sample. which type of sampling is used? select the correct answer below: systematic sampling convenience sampling stratified sampling cluster sampling

The us economy received all of the following benefits as a result of technological advancements during industrialization except a. increased production b. reduced costs of consumer goods c. increased farm employment d. the invention of new products

Researchers endeavoring to conduct an on-line study should consider that there are some potential risks of harm to subjects unique to internet based research. one if the risks is