Home › Forums › Decaffeinated Coffee › The Riddle Thread….
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October 21, 2010 5:24 pm at 5:24 pm #1069331YW Moderator-80Member
now if you would have said 12 oz bottles, it would be simple
October 21, 2010 6:16 pm at 6:16 pm #1069332Dr. PepperParticipantModerator-80-
OK, give it a shot- you just might give him the hint he needs to figure it out.
October 22, 2010 3:14 am at 3:14 am #1069333I can only tryMemberDr. Pepper-
I don’t really know the calculation involved, but using this post of yours:
http://www.theyeshivaworld.com/coffeeroom/topic/the-riddle-thread/page/32#post-153407
…and this explanation of nCr (which I think helped me understand it):
http://www.xtremevbtalk.com/showthread.php?t=112460
I’ll try this:
(8 nCr 3) * ((1/12)^3) * ((11/12)^5)
=
56 * 0.0005787037037037037037037037037037 * 0.64722784850823045267489711934156
=
0.020974976572025986892242036249453
or about a 2% possibility
(fractions derived using the Windows calculator)
Now, here’s homework for the teacher:
1) If the answer is correct but clumsily done, please show the correct way of doing it.
2) If the answer is incorrect, please show where the mistake(s) lie(s).
October 22, 2010 4:29 am at 4:29 am #1069334Dr. PepperParticipantExactly!
October 22, 2010 11:53 am at 11:53 am #1069335I can only tryMemberDr. Pepper-
If that was in response to my answer, give yourself credit for teaching an old dog a new trick.
Arf!
October 22, 2010 1:41 pm at 1:41 pm #1069336Dr. PepperParticipantI can only try-
Yes, it was in response to your answer.
I noticed that the posts are only being approved every couple of hours or so. When I logged on and saw that some where recently approved I wanted to send a quick post before the mod logged off for the night, therefore I only had time for a one word reply.
Here’s the formula I used in Excel
=BINOMDIST(3,8,(1/12),FALSE)
October 22, 2010 3:28 pm at 3:28 pm #1069337squeakParticipantand how many standard deviations from the mean would winning 3 times be?
October 22, 2010 3:37 pm at 3:37 pm #1069338Dr. PepperParticipantIs this for ICOT or can I answer?
October 22, 2010 4:10 pm at 4:10 pm #1069339squeakParticipantNah, go ahead. I wouldn’t know what to do with the answer anyway.
October 22, 2010 4:59 pm at 4:59 pm #1069340Dr. PepperParticipantThe mean is 2/3 and the variance is 88/144 => the standard deviation is .781735959970572.
3 is 7/3 from the mean which is 2.98481002897854 standard deviations.
October 26, 2010 4:07 pm at 4:07 pm #1069341blueberrymuffinParticipantThis thread needs a revival! Anyone have any good riddles….?
October 27, 2010 2:19 am at 2:19 am #1069344I can only tryMemberGoing to the Dogs
every answer to this quiz is dog-related in some way
6) Buck is the main character of this early 20th-century novel, set in 19th-century Alaska.
7) The annual Iditarod race commemorates the delivery of life-saving serum to Nome, Alaska by packs of sled dogs, thereby bring an end to the outbreak of this disease.
8) Balto, the most famous of the serum-delivering dogs is memorialized with a statue in this park.
11) Winston Churchill and Orel Hershiser share this nickname.
13) Nipper famously listened for (and to) this.
14) This U.S. President had him as a Buddy.
17) The “Dog Star”.
18) A small tent.
19) A type of three-masted sailing ship.
20) “Searchlight” is Little Willy’s dog in this popular 1980 children’s novel by John Reynolds Gardiner about a dogsled race.
have fun & don’t go barking up the wrong tree
October 27, 2010 5:29 pm at 5:29 pm #1069345squeakParticipantWith somewhat more delay than usual in moderating, I’m thinking that this is the thread to be in- gives everyone a chance to keep thinking about the riddle without seeing anyone else’s answers for a while.
1. Which English language word is most frequently spelled wrong?
2. What has one horn and gives milk?
3. What starts with “T”, ends with “T”, and is full of “T”?
4. What word becomes shorter by adding letters to it?
5. What 3 letter English word has an odd start, and even finish, and an infinitely long middle?
6. What falls but never breaks? Breaks but never falls?
7. Forward it is heavy, but backward it is not. What is it?
And finally….
Finish the pattern:
1=3
2=3
3=5
4=4
5=4
6=3
7=5
8=5
9=4
10=3
11=?
12=?
October 27, 2010 5:45 pm at 5:45 pm #1069346YW Moderator-80Member1.wrong
2.milk delivery vehicle
3.teapot
4.short
October 27, 2010 5:45 pm at 5:45 pm #1069347blinkyParticipant#1 is “wrong”?
#3- teapot?
October 27, 2010 5:52 pm at 5:52 pm #1069348YW Moderator-80Memberyes wrong is spelled w r o n g
the word begins with letter t, ends with letter t
and a teapot is filled with T (tea)
October 27, 2010 5:54 pm at 5:54 pm #1069349blinkyParticipantI googled a couple of the others…does it count if i post it? Or should i give someone a chance to figure it out?
p.s. my previous answers were NOT googled
October 27, 2010 6:05 pm at 6:05 pm #1069350blinkyParticipantMod 80 i was answering the riddle! I wasn’t questioning your answers i just didn’t see your answers- it was posted the same time as mine was.
October 27, 2010 6:07 pm at 6:07 pm #1069351squeakParticipantso far, so good blinky & mod80
October 27, 2010 6:10 pm at 6:10 pm #1069352Dr. PepperParticipant1=3
2=3
3=5
4=4
5=4
6=3
7=5
8=5
9=4
10=3
11=6
12=6
October 27, 2010 6:12 pm at 6:12 pm #1069353YW Moderator-80Memberoh, sorry
the question marks threw me
October 27, 2010 6:13 pm at 6:13 pm #1069354squeakParticipantYup. I’m glad I riddled you easy this time, Dr., so that you could solve it 😉
October 27, 2010 6:14 pm at 6:14 pm #1069355blinkyParticipantthe question marks threw me
Cool!- Where?
October 27, 2010 6:14 pm at 6:14 pm #1069356YW Moderator-80Member11=6
12=6
October 27, 2010 6:15 pm at 6:15 pm #1069357Dr. PepperParticipantSqueak:
Here’s my question for you-
If the binomial distribution is discrete why do you care what the standard deviation is?
October 27, 2010 6:15 pm at 6:15 pm #1069358YW Moderator-80Memberfrom the land of Figurativeness onto concrete
October 27, 2010 6:16 pm at 6:16 pm #1069359blinkyParticipant#5- vex (ok i cheated on this one)
October 27, 2010 6:16 pm at 6:16 pm #1069360squeakParticipantI told you, I wouldn’t know what to do with the answer.
October 27, 2010 6:18 pm at 6:18 pm #1069361Dr. PepperParticipantIf you tell me what the “wagon” is I’ll tell you why you need it.
October 27, 2010 6:19 pm at 6:19 pm #1069362YW Moderator-80Membersince the binomial distribution is generally discrete you can trust it. there is no standard deviation, every binomial distribution deviates according to its own nature and environment.
October 27, 2010 6:23 pm at 6:23 pm #1069363squeakParticipantSince you insist, I will cave.
If I have a large number of binomially distributed events, I can use the central limit theorem to assess them with a normal distribution and give meaning to the standard deviation.
Thought you had me there, didn’t ya? I’m not entirely fuddy-duddy.
October 27, 2010 6:24 pm at 6:24 pm #1069364Dr. PepperParticipantThere sure is a standard deviation.
(Given parameters m and q the standard deviation is (m * q * (1-q) )^.5)
October 27, 2010 6:26 pm at 6:26 pm #1069365squeakParticipantI assume that in your job you use the binomial for frequency? What about credit scores- or is that only severity?
October 27, 2010 6:28 pm at 6:28 pm #1069366Dr. PepperParticipantsqueak-
You don’t need it in that case, you can use it if you wish.
Where do you need to use it?
October 27, 2010 6:30 pm at 6:30 pm #1069367blinkyParticipant#7 is “ton”
(thank you squeak for posting riddles that the general klal can figure out!- no offense doctor p. and others…)
October 27, 2010 6:36 pm at 6:36 pm #1069368Dr. PepperParticipantsqueak-
We use it for both frequency and severity (as long as the variance is less than the mean and the distribution is discrete).
I don’t work with credit scores.
October 27, 2010 7:27 pm at 7:27 pm #1069369squeakParticipantare we at an impasse?
October 27, 2010 7:27 pm at 7:27 pm #1069370Dr. PepperParticipant4. What word becomes shorter by adding letters to it?
Short becomes shorter when adding the er to it.
October 27, 2010 9:34 pm at 9:34 pm #1069371blinkyParticipant#7 is night and day
October 28, 2010 1:13 am at 1:13 am #1069372Smile E. FaceMember#6-night fall and daybreak
October 28, 2010 3:11 pm at 3:11 pm #1069373squeakParticipantOK, you got them all. Here’s another for the general klal to answer (I request Dr. Pepper to wait a bit).
Hug-a-Rug Drug Company has just gotten FDA approval for a new medical test to determine if a person is allergic to carpet fibers. One in seventy people in the general population are allergic to carpet fibers. In the clinical trial, 1,000 subjects were tested, of which 500 were known to be allergic and 500 were known to not be allergic. The test results were as follows:
460 of the allergic people tested positive (true positive)
10 of the non-allergic people tested positive (false positive)
490 of the non-allergic people tested negative (true negative)
40 of the allergic people tested negative (false negative)
Samuel E. Hutchueson, a.k.a. Sam “Sneezy” is the first person to be tested outside the clinical trial. His test results are positive. How certain are we that ole’ Sneezy is allergic to carpet fiber?
October 28, 2010 3:19 pm at 3:19 pm #1069374Dr. PepperParticipantCan I use a Venn Diagram?
October 28, 2010 3:35 pm at 3:35 pm #1069375squeakParticipantWhen it’s your turn 🙂
October 28, 2010 3:41 pm at 3:41 pm #1069376oomisParticipantWith somewhat more delay than usual in moderating, I’m thinking that this is the thread to be in- gives everyone a chance to keep thinking about the riddle without seeing anyone else’s answers for a while.
1. Which English language word is most frequently spelled wrong?
2. What has one horn and gives milk?
3. What starts with “T”, ends with “T”, and is full of “T”?
4. What word becomes shorter by adding letters to it?
5. What 3 letter English word has an odd start, an even finish, and an infinitely long middle?
6. What falls but never breaks? Breaks but never falls?
7. Forward it is heavy, but backward it is not. What is it?
1. W-R-O-N-G
2. a milk delivery truck
3.
4.short
5.
6.something to do with the weather, climate, or seasons
7.ton
Best I could think of al regel achas…
October 28, 2010 3:44 pm at 3:44 pm #1069377oomisParticipantoomis, silly- you don’t bury survivors!!
‘
I was (ahem…) being SARCASTIC!!!!!!
October 28, 2010 3:56 pm at 3:56 pm #1069378YW Moderator-80MemberE
the answer to icots riddle on the first page from 1 year ago
it took me a while
October 28, 2010 5:51 pm at 5:51 pm #1069379squeakParticipantIt appears there are no takers….
I’d love to see a solution using Venn diagrams.
October 28, 2010 6:03 pm at 6:03 pm #1069380blinkyParticipantsorry squeak- this doesn’t fall into the “general klal” riddle
October 28, 2010 6:34 pm at 6:34 pm #1069381squeakParticipantSpeaking of ICOT, he posted on this page, but no one answered. I didn’t want to ‘chap’ anything, but now I guess it’s OK.
6) Buck novel: Call of the Wild, by London (attention Wolfish)
7) Iditarod commemorates end of this disease: Diptheria
8) Balto statue in this park: Central Park!
11) Churchill & Hershiser nickname: (British) Bulldog – one shares half his nickname, the other, all of it.
12) Laika: Was a Russkie space dog on Sputnik, wasn’t she? Died, though- ah! the dog was “short-lived”, not the fame.
13) Nipper listened for this: His Master’s Voice (I chuckled at the memory).
14) U.S. President’s pet Buddy: Clinton (everyone knows Socks the cat, but not Buddy and Seamus. Why?)
17) The “Dog Star”: Sirius
18) A small tent: Pup
19) A type of three-masted sailing ship: Stumped me.
20) “Searchlight” dog John Reynolds Gardiner: Stone Fox
October 28, 2010 6:35 pm at 6:35 pm #1069382squeakParticipantblinky- The correct answer doesn’t, but usually people will see an easy solution which is wrong. Maybe I should have worded it differently, to elicit that response.
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