You are a contestant on a TV game show; there are four identical-looking suitcases containing $200, $400, $800, and $1600. You start the game by randomly choosing a suitcase. Among the three unchosen suitcases, the game show host opens the suitcase that holds the least money. The host then asks you if you want to keep your suitcase or switch one of the other remaining suitcases. For the following analysis use the following notation for events: (1) Ciis the event that you choose a suit- case with i dollars.
(2) Oi denotes the event that the host opens a suitcase with i dollars.
(3) R is the reward in dollars that you keep.
answer following questions:
(a) You refuse the host's offer and open the suitcase you first chose. Find the PMF of R and the expected value E[R).
(b) You switch and randomly choose one of the two remaining suitcases. You receive the R dollars in this chosen suitcase. Sketch a tree diagram for this experiment, and find the PMF and expected value of R.

Which statement best explains the motivation for the narrator's mother to introduce her daughter to everyone they meet? from amy tan's "rules of the game."

If you get me a passing grade ill give u a you and brainlest : ) 1. which is the best paraphrase of these lines from "new world"? eagles / hie and / hover / above / the plain a)eagles hurry and hang above the flatland. b)eagles hang in midair and wave their wings. c)eagles race and rush in an ugly way. d)eagles soar and swoop in a simple, everyday way. 2. in "january," what does the speaker mean by the image in the following lines? the sun a spark hung thin between the dark and dark. a)the sun barely shows behind the dark clouds. b)the sun sends off thin sparks in the night. c)the sun appears for only a short time between the long winter nights. d)the sun is unable to relieve the depression of winter. 3. which phrase from the lines you identify the correct answer to the previous question? a)the sun b)a spark c)hung thin d)and dark 5. which word in this sentence is a personal pronoun in the objective case? we know two tour guides, and they gave us a tour themselves. a)we b)they c)us d)themselves 6. which of the following sentences uses a pronoun in the possessive case? a)ask sarah to pass the chips to me. b)check for my signature on the front page c)he went to the park to find the dog. d)the winner of the contest was she. revise the following sentence so it uses a pronoun in the objective case. i took the book from ian. a)ian handed the book to me b)he handed the book over. c)i took his book. d)we exchanged books. 8. in which situation are you most likely use the word tongue? a)translating a book from german to engli b)writing an ad for a new business c)carrying some groceries into your home d)driving in a car to the store 9. in which hobby would you most likely know about the word pollen? a)fencing b)knitting c)gardenin d)bowling 10. which word is an antonym for exquisite? a)flawe b)complicated c)gorgeous d)effortless

20 pts + brainliest for a answerread the passage.excerpt from franklin delano roosevelt's inaugural address of march 4, 1933this is preeminently the time to speak the truth, the whole truth, frankly and boldly. nor need we shrink from honestly facing conditions in our country today. this great nation will endure as it has endured, will revive and will prosper. so, first of all, let me assert my firm belief that the only thing we have to fear is fear itself—nameless, unreasoning, unjustified terror which paralyzes needed efforts to convert retreat into advance.what is the effect of formal language and word choice on the speaker's tone? select each correct answer.it creates a hopeless tone.it creates a complacent tone.it creates a superior tone.it creates a serious tone.it creates a persuasive tone.