Random <u>selection </u>ensures that a sample is representative of the population. random <u>assignment </u>ensures that participant characteristics are equivalent across groups.
<h3>What is a representative sample?</h3>
Representative samples are little amounts or components that are a part of a bigger group or organization. It shares the same characteristics as the bigger population it represents.
Consider a company in Germany's Bavaria that is going to launch a new service or product. It would be difficult for the company to poll every Bavarian to determine how they felt about the launch. As an alternative, researchers can compile a small sample from various locations in Bavaria that will serve as a representative sample of the local populace. After that, a survey will be given to the respondents to gather their comments on the good or service. A "representative sample" is the term used to describe this selection of Bavarian individuals.
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Answer:
ok
Explanation:
geroge washington , john adams , thomas jefferson , james madison , james monroe
The correct answer is the founding values and principles of the country
America is founded on a strong democratic and idealistic standing. America also has a rich history from which it borrows. This includes the calamity of the Civil War and the lessons learned
Answer:
Primary
Explanation:
In psychology and operant conditioning, the term Primary reinforcer refers to the biological reinforcers that determine our behavior. In other words, they are part of our nature and reinforce behaviors in a natural way without a process of learning from us, since they are, by themselves, satisfying a biological need. Therefore, they have innate reinforcing qualities. Examples of these reinforcers would be: food, sex, water, sleep.
Therefore, in operant conditioning, a primary reinforcer is innately reinforcing, often by satisfying a biological need.
Answer:
50% of the hatched chickens would be speckled, 25% would be black and 25% would be 25%
Explanation:
The black chickens are the dominant allele and the white chicken are the recessive allele. Since the black chicken is dominant, Let the genotype of the black chickens be (BB) and the genotype of the white chicken be (ww).
If the Black and white chicken are cross bred and the eggs hatched are black with white speckles, i.e (Bw). The genotype of all the hatched chickens would be (Bw). Where Bw is speckled chicken.
If the hatched chicken with genotype (Bw) are interbred, the resulting hatched chickens genotype would be BB, Bw, Bw and ww for four offsprings. This shows that 50% of the hatched chickens would be speckled, 25% would be black and 25% would be 25%
