Answer:
Stratified sampling
Explanation:
When carrying out a stratified sampling, the researchers split the population into different groups. The resulting sample is a consequence of some members from each group who are chosen randomly. This method ensures representation for every individual in each group in the sample, and it avoids a biased result.
Answer:"Teens need adequate deep sleep and REM sleep to rebuild long-term memory for learning, focus attention for driving and maintain health and fight obesity ... They're so connected to their machin
Explanation:
long-term memory for learning, focus attention for driving and maintain health and fight ob
Answer:
D, as background sets the scene and is the theme of the novel.
Explanation:
I think it's wasted and weary.....
Do you have a link to the story where i can read it to help you?
