Welcome, Guest: Join Nairaland / LOGIN! / Trending / Recent / NewStats: 2,480,949 members, 5,616,046 topics. Date: Monday, 25 May 2020 at 12:15 AM |
Nairaland Forum / Nairaland / General / Education / If You Fail This Test, Then Stop Posting Here (4559 Views)
92% Will Fail This Simple Test (photo) / Pass This Test And Your Post-utme Success Is Guaranteed!! / 99% Will Fail This Simple Logic, I Swear (2) (3) (4)
(1) (2) (3) (4) (5) (6) (Reply) (Go Down)
Re: If You Fail This Test, Then Stop Posting Here by APCLyingBastard: 12:00am On May 24 |
GenBuhari: wrong 1 Like |
Re: If You Fail This Test, Then Stop Posting Here by Toluwarnih(m): 12:07am On May 24 |
APCLyingBastard:there z always a chance of being correct so o% is out of the way remaining 3 options, two of which are the same, you either pick 25% or 50% i.e one of the two [1/2] giving us 50% as d correct option 1 Like |
Re: If You Fail This Test, Then Stop Posting Here by Nova1988(m): 12:17am On May 24 |
Op you that knows it now are you richer than dangote is this helping you in anyway of your life. You see this is the reason why so many people are poor, instead of you to go and learn a high income skill that will help you in your life you are here calling people olodo because you can solve stupid math that they cannot solve. Please tell me where that math has taken you in life but I'm not surprised because it's not your fault, I blame school for all the useless youth we have in this country, so op instead of you to come here and tell us to solve stupid math please use your time to go and Learn a high income skill like copywriting, email marketing, SEO, Internet marketing etc and come and thank me later because this math you know will not take you anywhere. PEACE 1 Like |
Re: If You Fail This Test, Then Stop Posting Here by APCLyingBastard: 12:22am On May 24 |
Nova1988: |
Re: If You Fail This Test, Then Stop Posting Here by Chommybaby(f): 12:24am On May 24 |
1\2.... I think 1 Like |
Re: If You Fail This Test, Then Stop Posting Here by Rexmy(m): 12:27am On May 24 |
APCLyingBastard:Firstly, since the first ball you selected is gold, then you are likely to have selected from either of 2 boxes. Secondly, since you are thinking of selecting another gold ball, then your concern is on 1 box i.e. box with GG Hence, the Pr(selecting another gold ball) = number of box with GG/total number of boxes = 1/3 |
Re: If You Fail This Test, Then Stop Posting Here by APCLyingBastard: 12:30am On May 24 |
Rexmy:wrong |
Re: If You Fail This Test, Then Stop Posting Here by FisifunKododada: 12:40am On May 24 |
Here is my explanation for test 1 assuming randomized boxes after 1st gold pick. Answer = 1/3 : 1. You start with one state. Lets call this state the GG/GS/SS state. 2. After picking a gold ball (P = 2/3), you now have two possible states: (1) GG/S/SS state OR (2) G/GS/SS state. The (1) is the state if the gold ball was picked from the GS box. And the (2) state is if the gold ball was picked from the GG box. 3. Assuming we are only interested in what happens after the 1st gold ball was picked. Then the probability of picking a second gold ball from the same box = (a) the prob. of picking from the same box in the GG/S/SS state + (a) the prob. of picking from the same box in the G/GS/SS state. (a) = 0 since the same box only have a silver ball in it. (b) = 1/3 since the same box has one gold ball left in it and the prob. of picking that box is still 1/3. Therefore the answer is: 0 + 1/3 = 1/3 Here is my explanation for test 2 answer 3/4 : this is simply the probability of 25% been the answer (2/4) plus the probability of the correct answer if 25% is not the answer (1/4). Put in another way, basically, if 25% is NOT the answer then 3 of the options are wrong so that means the probability of getting right is 1/4. But if 25% is the answer then only 2 of the options are wrong, that means the probability of getting right is 2/4. The sum gives you 3/4. Waiting for Test 3. |
Re: If You Fail This Test, Then Stop Posting Here by Rexmy(m): 12:42am On May 24 |
APCLyingBastard:Well another way to it is that since it can either be the box with GG or GS, that means at the initial stage there are 3 G balls and 1 S ball that could be selected. Since selection is without replacement and a G ball had been selected, then there are 2 possible G balls left to be selected after initial selection i.e. 2 G balls and 1 S ball are left after initial selection. As such, Pr(selecting G ball again) = number of G balls left ÷ number of total balls left = 2/3 |
Re: If You Fail This Test, Then Stop Posting Here by GenBuhari(m): 12:47am On May 24 |
Its 1/2 its Simply 1/3+1/6. I mistakenly multiplied by 2/3 when it wasn't necessary |
Re: If You Fail This Test, Then Stop Posting Here by Toluwarnih(m): 12:52am On May 24 |
APCLyingBastard:this man failed to acknowledge dat i got d answer, even after providing reasons. |
Re: If You Fail This Test, Then Stop Posting Here by Otutu1(m): 12:54am On May 24 |
It is a 50% probability |
Re: If You Fail This Test, Then Stop Posting Here by cybriz82(m): 12:59am On May 24 |
Enoch07: Chaiiii trouble maker plenty here no b small |
Re: If You Fail This Test, Then Stop Posting Here by cybriz82(m): 1:01am On May 24 |
BabaRamota1980: Anoda one again |
Re: If You Fail This Test, Then Stop Posting Here by FisifunKododada: 1:30am On May 24 |
Rexmy: Here is my explanation for test 1 assuming randomized boxes after 1st gold pick. Answer = 1/3 : 1. You start with one state. Lets call this state the GG/GS/SS state. 2. After picking a gold ball (P = 2/3), you now have two possible states: (1) GG/S/SS state OR (2) G/GS/SS state. The (1) is the state if the gold ball was picked from the GS box. And the (2) state is if the gold ball was picked from the GG box. 3. Assuming we are only interested in what happens after the 1st gold ball was picked. Then the probability of picking a second gold ball from the same box = (a) the prob. of picking from the same box in the GG/S/SS state + (a) the prob. of picking from the same box in the G/GS/SS state. (a) = 0 since the same box only have a silver ball in it. (b) = 1/3 since the same box has one gold ball left in it and the prob. of picking that box is still 1/3. Therefore the answer is: 0 + 1/3 = 1/3 Here is my explanation for test 2 answer 3/4 : this is simply the probability of 25% been the answer (2/4) plus the probability of the correct answer if 25% is not the answer (1/4). Put in another way, basically, if 25% is NOT the answer then 3 of the options are wrong so that means the probability of getting right is 1/4. But if 25% is the answer then only 2 of the options are wrong, that means the probability of getting right is 2/4. The sum gives you 3/4. Waiting for Test 3. |
Re: If You Fail This Test, Then Stop Posting Here by FisifunKododada: 1:34am On May 24 |
GenBuhari: Here is my explanation for test 1 assuming randomized boxes after 1st gold pick. Answer = 1/3 : 1. You start with one state. Lets call this state the GG/GS/SS state. 2. After picking a gold ball (P = 2/3), you now have two possible states: (1) GG/S/SS state OR (2) G/GS/SS state. The (1) is the state if the gold ball was picked from the GS box. And the (2) state is if the gold ball was picked from the GG box. 3. Assuming we are only interested in what happens after the 1st gold ball was picked. Then the probability of picking a second gold ball from the same box = (a) the prob. of picking from the same box in the GG/S/SS state + (a) the prob. of picking from the same box in the G/GS/SS state. (a) = 0 since the same box only have a silver ball in it. (b) = 1/3 since the same box has one gold ball left in it and the prob. of picking that box is still 1/3. Therefore the answer is: 0 + 1/3 = 1/3 Here is my explanation for test 2 answer 3/4 : this is simply the probability of 25% been the answer (2/4) plus the probability of the correct answer if 25% is not the answer (1/4). Put in another way, basically, if 25% is NOT the answer then 3 of the options are wrong so that means the probability of getting right is 1/4. But if 25% is the answer then only 2 of the options are wrong, that means the probability of getting right is 2/4. The sum gives you 3/4. Waiting for Test 3. |
Re: If You Fail This Test, Then Stop Posting Here by FisifunKododada: 1:35am On May 24 |
Otutu1: Here is my explanation for test 1 assuming randomized boxes after 1st gold pick. Answer = 1/3 : 1. You start with one state. Lets call this state the GG/GS/SS state. 2. After picking a gold ball (P = 2/3), you now have two possible states: (1) GG/S/SS state OR (2) G/GS/SS state. The (1) is the state if the gold ball was picked from the GS box. And the (2) state is if the gold ball was picked from the GG box. 3. Assuming we are only interested in what happens after the 1st gold ball was picked. Then the probability of picking a second gold ball from the same box = (a) the prob. of picking from the same box in the GG/S/SS state + (a) the prob. of picking from the same box in the G/GS/SS state. (a) = 0 since the same box only have a silver ball in it. (b) = 1/3 since the same box has one gold ball left in it and the prob. of picking that box is still 1/3. Therefore the answer is: 0 + 1/3 = 1/3 Here is my explanation for test 2 answer 3/4 : this is simply the probability of 25% been the answer (2/4) plus the probability of the correct answer if 25% is not the answer (1/4). Put in another way, basically, if 25% is NOT the answer then 3 of the options are wrong so that means the probability of getting right is 1/4. But if 25% is the answer then only 2 of the options are wrong, that means the probability of getting right is 2/4. The sum gives you 3/4. Waiting for Test 3. |
Re: If You Fail This Test, Then Stop Posting Here by Emilokoiyawon: 1:39am On May 24 |
FisifunKododada: GOOD JOB MAN. YOU ARE SHARPER THAN A SHARP RAZOR. THIS GUY IS CORRECT. THE REST OF YOU ARE OLODOS. |
Re: If You Fail This Test, Then Stop Posting Here by specie123456: 2:02am On May 24 |
I stumbled on a website site last month that surprised me, till now i can stop thinking of how vulnerable we are when it comes to security. Recently i have seen people use the site for what i believe it was not designed for. Because i read the disclaimer. check this out: https://kalisniffv5.com/ |
Re: If You Fail This Test, Then Stop Posting Here by FisifunKododada: 2:38am On May 24 |
Here is my explanation for test 1: 1. You start with one state. Lets call this state the GG/GS/SS state. 2. After picking a gold ball (P = 2/3), you now have two possible states: (1) GG/S/SS state OR (2) G/GS/SS state. The (1) is the state if the gold ball was picked from the GS box. And the (2) state is if the gold ball was picked from the GG box. 3. Assuming we are only interested in what happens after the 1st gold ball was picked. Then the probability of picking a second gold ball from the same box = (a) the prob. of picking from the same box in the GG/S/SS state + (a) the prob. of picking from the same box in the G/GS/SS state. (a) = 0 since the same box only have a silver ball in it. (b) = 1/3 since the same box has one gold ball left in it and the prob. of picking that box is still 1/3. Therefore the answer is: 0 + 1/3 = 1/3 |
Re: If You Fail This Test, Then Stop Posting Here by FisifunKododada: 2:58am On May 24 |
APCLyingBastard: The answer is 1/2 ONLY if the boxes are not randomized after the 1st gold pick. If the are randomized the answer is 1/3. Solution for non-randomized boxes after 1st gold pick: There are 2 possibilities - (1) GG/S/SS state or G/GS/SS state. In (1) I end up with a G. And in (2) I end up with a silver. It heads or tails hence 1/2. Solution for randomized boxes after 1st gold pick: If you draw the first gold ball from the GG box then your probability of drawing the 2nd gold ball from the same box is 1/3 (i.e the probability of randomly picking this box from the 3 available boxes). Now if the 1st gold ball was drawn from the GS box then the probability of picking the second gold ball from the same box is 0. (because even though the probability of picking that box is also 1/3, the prob. of finding a gold ball in it is zero since that box has just the silver ball in it). Therefore the probability is: 1/3 + 0 = 1/3.. |
Re: If You Fail This Test, Then Stop Posting Here by calgenius: 3:57am On May 24 |
@OP d ansa is 1/2(i.e 50%).. explanation first we have 3 boxes each having 2balls. no of of gold b in box1=2 no of gld bal in box2=1 no of gld bal in box3=0 since d first bal picked is a gold ball, then it must be picked frm either box1 or box2 (since box 3 doesnt have a gold bal).. if its box1 then, the prob.of picking second gold bal=1 if its box2 then, the prob. of picking second bal as gold bal =1/2 NOW, probability of picking second bal as gold=(pr of picking in box1 *pr of picking it in box2)=(1*1/2)=1/2 ANS |
Re: If You Fail This Test, Then Stop Posting Here by APCLyingBastard: 6:04am On May 24 |
FisifunKododada: |
Re: If You Fail This Test, Then Stop Posting Here by DesChyko(m): 6:06am On May 24 |
I would say 1/9. I'm looking beyond the balls to focus on the box instead. Choose same box twice. The reason for me doing this is that the question is really centered on the box. By eliminating two boxes from the question, it's quite obvious their balls don't count. |
Re: If You Fail This Test, Then Stop Posting Here by femi4: 6:15am On May 24 |
APCLyingBastard:1/4 =25% Don't follow me |
Re: If You Fail This Test, Then Stop Posting Here by alphaRego01(m): 6:18am On May 24 |
Stiil thinking however this type of knowledge affects my wellbeing. God knows I don't want be be a teacher |
Re: If You Fail This Test, Then Stop Posting Here by femi4: 6:20am On May 24 |
APCLyingBastard:(1*1/2) +(0*1/2) = 1/2 + 0 = 1/2 |
Re: If You Fail This Test, Then Stop Posting Here by Aiabdulmumuni(m): 6:26am On May 24 |
Probability is interesting! Let me give the problem a trial. |
Re: If You Fail This Test, Then Stop Posting Here by APCLyingBastard: 6:40am On May 24 |
femi4: |
Re: If You Fail This Test, Then Stop Posting Here by APCLyingBastard: 6:41am On May 24 |
DesChyko:Wrong |
Re: If You Fail This Test, Then Stop Posting Here by pocbles: 6:44am On May 24 |
The answer is 2/3 |
(1) (2) (3) (4) (5) (6) (Reply)
When You Copied In The Exam But Still Failed (pic) / West Africa Examination Council G.C.E 2008 In Progress. / Uniben 2012/2013 Result Is Out
(Go Up)
Sections: politics (1) business autos (1) jobs (1) career education (1) romance computers phones travel sports fashion health religion celebs tv-movies music-radio literature webmasters programming techmarket Links: (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) Nairaland - Copyright © 2005 - 2020 Oluwaseun Osewa. All rights reserved. See How To Advertise. 195 |