Data Management Help
Hey Guys~
aargh, once again stuck on homework. This one i just need guidance, as i want to get the answer myself? but its cool if the answers there.
'May the odds be in your favor'
Its about hunger games, general info:
-12 Districts, 2 selected from each district (one male, one female), 24 in total.
-The reaping is the annual amount that takes place in each district. This is where they randomly select the tributes, from 2 separate glass balls.
-To be qualified for a reaping, one must be 12 years old. Once of age, a potential-tributes name is entered into the reaping one time. The entries are cumulative, so when a possible tributes name is entered 7 times in total. Potential tributes may opt for additional entries of their name in exchange for enough grain and oil for one person for one year.
In district 12, 1400 children aged 12-18 w/ equal distribution amongst age and gender. Distributions remain constant from year-to-year. In addition to cumulative name entry, assume that each potential opts to enter their name, on average, one more time, each year.
1. Determine the odds of being selected change from year to year for people aged 12-18 in district 12
2. Determine the probability that a person from district 24 will never be chosen for hunger games
3. Many members of the public, who show little to no sympathy for the potential tributes, often place bets on who will be chosen. An 18 year old male from district 12 is entered into the draw 42 times in total. Determine what a member of the public would stand if they are willing to wager $100 that this male will be chosen as a tribute.
[IMG]http://i49.tinypic.com/2vihx6x.jpg[/IMG]
[url=http://tinypic.com/r/2vihx6x/6]Picture od hmk[/url]
-Very very confused. 'odds?'
blah. these hmk questions.
6 Comments • Newest first
@Haishiro okay. I guess i know where i went wrong. My thinking went off at #2 as i keep thinking of some method the teacher thought. #1 was straightforward. these questions look so easy with solutions , but have so much thinking!
You`re a smart guy, thank you so much. Makes so much more sense with the explanations! Thanks once again!
okay @Haishiro
So im just gunna check with you if the calculations are right.
for #1 ) Odds. Meaning its better to use a complimentry method?
So, since they get +1 raffe , +1 entry per year... it would be something like :
'1/1400+ 3/1400 + 4/1400 ........ 14/1400' ?
2) You said : someone will not be chosen when they are 12) x (not chosen at 13) x (not chosen at 14) x ... (not chosen at 18). How would you calculate that?
You said that theres basically 100 female/male per age, so i`d calculate
(200/1400)*(200/1400)* .. im failing . or would this be the other way around per age
so.. (1200/1400)* (1200/1400) .. would there be replacement? (Guessing that`s, otherwise the question would have said so)
3) I dont get this. Wager problems. Once i understand the last questions, i think i might get this while reffering to the link you sent.
thanks for all this help @haishiro
@Haishiro: just scanned it, one second
1. 1 / 1400 -> 2 / 1400 > 3 / 1400 > 4 / 1400...
2. What?
3. What?
@Haishiro alright. lets see if i can fix this up grammatically
i` put a picture of the hmk question lol so you can read it all .. might help.
LOL i have that class this semester too.