Explain the difference between a stratified sample and a cluster sample.
a. in a stratified sample, random samples from each strata are included.
b. in a cluster sample, the only samples possible are those including every kth item from the random starting position.
c. in a cluster sample, every sample of size n has an equal chance of being included.
d. in a cluster sample, random samples from each strata are included.
e. in a stratified sample, the only samples possible are those including every kth item from the random starting position.

Which of these excerpts is most clearly an example of narrative poetry? a. “in xanadu did kubla khan/a stately pleasure dome decree…” b. “and all that’s best of dark and bright/meet in her aspect and her eyes…” c. “who can contemplate fame through clouds unfold/the star which rises…” d. “one shade the more, one ray the less/had half impaired the nameless grace…”

Read the passage from sugar changed the world. sugar is a taste we all want, a taste we all crave. people throughout the planet everywhere have been willing to do anything, anything at all, to get that touch of sweetness. we even know exactly how thrilling it was to taste sugar for the first time. when the lewis and clark expedition met up with the shoshone, who had little previous contact with old world products, sacagawea gave a tiny piece of sugar to a chief. he loved it, saying it was "the best thing he had ever tasted." sugar created a hunger, a need, which swept from one corner of the world to another, bringing the most terrible misery and destruction, but then, too, the most inspiring ideas of liberty. sugar changed the world. we begin that story with a man who could never know enough. how does the conclusion of the prologue support the authors’ purpose? select two options. it introduces the topic that will be addressed next. it provides information about the authors. it states why the topic is relevant to readers. it cites sources the authors used in the text. it explains how the authors came to study the subject.

Using the format below, write a five-paragraph letter to jem explaining how you feel about three of his decisions. explain whether or not your perception of him has changed and why. use direct quotes from the text to support why you feel the way that you do. refer to the formatting of the friendly letter below to you correctly structure your work. heading sender's address greeting (dear after skipping a line and indenting, begin your opening paragraph. this paragraph states the purpose for writing the letter. tone should be friendly and respectful. skip another line and indent to continue the body of your letter. the body is where you add examples, details, and other relevant information. this letter should contain one to two body paragraphs. skip a line and indent yet again to begin your concluding paragraph. the recipient and make any requests in this paragraph. salutation (sincerely, regards,) sender's signature