Preguntas de entrevista de Business operations analyst

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A un Business Operations Analyst le preguntaron...2 de febrero de 2011

25 horses, 5 race tracks. How many races you have to run to select top 5 horses.

51 respuestas

You guys are not doing CS! 10 runs is my answer. 1. randomize 5 groups, each of 5 horses 2. rank them within each group, I will use Anuradha's notation (5 races) 3. pick the best of each group, race to figure the 1st place, call it A1 (1 race) It should be clear, it wins all times, every one lost once. 4. remove it. substitute 2nd best in. repeat 3 (in my eg. A2,B1,C1,D1,E1) now you have second place. keep going, you get the first 5 and ranking! So, 5+5=10 races in total. Menos

The answer is 9. Assuming: - There's no time measuring (stopwatch), just relative places. - The horses perform consistently. - A maximum of 5 horses per race. First we need 5 races (A to E) to get relative scores for all 25 horses. Let's take a worst scenario: the list was already ordered (A1 fastest and E5 slowest), so race A contained the top 5. The 6th race would be the winners of the 5 races (A1, B1, C1, D1, E1), and would give A1 as the fastest of all. This would also mean that some horses can be excluded (only 4 more places to fill): B5 C4, C5 D3, D4, D5 E2, E3, E4, E5 For the 7th race, A2 would replace A1, and A2 would be appointed as the runner-up (of all). We also can exclude some more (only 3 more places to fill): B4 C3 D2 E1 For the 8th race, A3 would replace A2, but as E1 has been excluded, we got a vacancy. Let's add C2 for worst case scenario. The winner would be A3, and we can exclude more horses (only 2 more places to fill): B3 C2 D1 At this point there're only 5 horses who have not yet been classified or excluded, so the winner and runner-up of the 9th race would give 4th and 5th overall. Menos

Anuradha's solution still has problems. (Even if we go with Anuradha's assumptions that you can only race one horse per track, and also assuming that we don't have a stopwatch and must compare horses placing positions) What if the fastest five horses are A1, B1, C1, D1, and E1 ? In Anuradha's second step, he elminates two of the fastest horses (D1 and E1) . He's assuming that A2, B2, or some of the other horses from the other heats are faster, but he hasn't actually tested to see if that is true. Menos

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Zocdoc

What is your least favorite thing about humanity?

31 respuestas

inane interview questions

The kardashians

Answering stupid questions from moronic interviewers.

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JetBlue

Why do u want to work for JetBlue

18 respuestas

June 30

Why are they taking so long? Have you contact them? Did you do your background and drug test Menos

April interviewee, how long after your interview, did they contact you regarding bkgrd n fp? Menos

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JetBlue

1)Tell me what you know about JetBlue? 2) what do you like or dislike about your current employer? 3)tell me a time you went out of the box for a customer? 4) tell me a time an employee didn't do their job and what did you do?

17 respuestas

I also interviewed at the LIC headquarters on October 5th 2015 and got an email that ask for DOB and SS# and there was an email stating that there was an issue with the link that was given and that we should wait for the next day which would've been Oct 9th. Then just yesterday Oct 21st I got the email stating they got my info and that they appreciated my patience in this matter.. So I'm sure it's just a matter of time for the background check to happen Menos

Hey I got selected. I also did interview on the 18 of June. I just finished my background now I'm just waiting for drug test which I will pass flying colors Menos

I just got the e mail that tey received my information. I guess the next step is background check. Menos

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Amazon

If I handed you a rubiks cube and told you that it had to be solved by tomorrow, how would you respond?

15 respuestas

Such questions are really stupid IMHO and I feel like punching the interviewer for asking crap like this. I don't think such questions prove anything. A person can be really good at handling situations but not respond likewise and a pretentious person can do very well in such cases but do a horrible job when hired. Please interviewers stop with such questions! Menos

If I were asked this question I would say, "You'll have it today". How you do it isn't too important, there are literally a million ways to "solve" the rubiks cube they're handing you, it's not a cube, it's any problem they need solved, just get it done as soon as you can, wouldn't you like it if you asked someone to do something & they went above & beyond? Whether it's an inter-office request or anything else, you are always either someone's customer or vendor & this is called "giving excellent customer service". This question is begging for Excellent Customer Service. Menos

Anyone that asks a question of this nature is looking for a typical, corporate behind kissing answer. personally I was much more impressed with your honest answer than I would be by someone, whose nature and work ability I have no idea about, answering like someone else did on this with "You'll have it today." You could have answered with that and have not the first clue about "customer service", because it is just a brown nosing answer. To me, a good answer is honest and forthright, and I never want to just hear what the interviewee thinks I want to hear. Menos

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Capital One

Rate yourself on a scale of 1 to 10 how weird you are.

15 respuestas

One number lower than whoever came up with this question

about a 5.6719151431

I am within two standard deviations from the norm...

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Amazon

If in a room there are 10 persons and if each person has to shake hands with all other then total how many hand shakes will be there

11 respuestas

10C2=45

10(10-1)/2

simply formulas: n*(n-1)/2 (n-1)*(n/2)

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Capital One

You have the choice between using first class or third class mail for a letter you are sending out to potential customers. First class costs $0.50 per piece and reach 100% of potential customers. Third class costs $0.40 per piece and reaches 80% of potential customers. Which do you use?

10 respuestas

either one is good. For example, you will reach 0.8 person by spending $0.4. If divided 0.4 by 0.8, we get that we will reach 1 person by spending $0.5. So two methods have the same effect. Menos

First class should be used, as the cost of each delivered letter will be the same, but you will reach all of your intended audience. Example: 1000 pieces to be sent, sending first class costs $500 and reaches 1000 ($.50 per peice), and sending second class costs $400 and reaches 800 ($.50 per piece) Menos

@gaurav: don't make it too complicated. they just want to know the costs of reaching the customers. peppermint is right. Menos

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Amazon

Behavioral based questions were easy to prepare for. Amazon prefers the STAR (situation, task, action, result) method to answer. Would suggestion preparing for the math flow question. I was asked the following: You have 30 associates who all work an 8 hour day, 5 days a week. 2 need to be in indirect (non-volume producing) roles. Your direct (production) rate is 150 units per hour, but you have two 15-minute breaks during the day. How many units can your department produce in a 40 hour week?

9 respuestas

(30 - 2) associates = 28 28 associates/hour * (8 - 0.5) hours/day * 5 days/week * 150 units = 157,500 units/week However, this assumes 100% utilization all the time and this is probably unrealistic. I would then apply a reduction to efficiency to account for unexpected delays. 157,500 units/week * 90% = 141,750 units/week ... final answer. Menos

The correct answer is 157500

This is a math question not an estimation on potential variables through sickness, breakdowns etc The answer is 157500 Menos

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Amazon

There are 27 balls with one ball having additional weight. Total how many attempts you have to make to check all balls using a sisaw

10 respuestas

3. group the 27 balls into3 groups of nine, weigh 2 of the groups. If one is heavier, continue with that group. If they are equal, continue with the unweighed group. Break those nine into 3 groups of 3, weigh 2 groups. If one is heavier, continue with that group, otherwise use the unweighed group. With the 3 left, weigh any two. If one is heavier, you have it. If they are the same, then it is the unweighed ball that is heaviest. You have used the scale 3 times Menos

3 You can guarantee the answer in 3 steps, if required. However, you no longer stand a chance of obtaining the answer in the first 2 weighings as I described immediately above. 1. Divide balls into 3 groups of 9. --> Weigh two of the groups. This will identify the heavy group. 2. Divide the identified heavy group into 3 groups of 3. --> Weigh two of the groups. This will identify the heavy group. 3. Separate the 3 balls in the heavy group and weigh. --> This comparison will identify the one heavy ball from the original group of 27. Menos

3 attempts - attempt 1 - divide 3 sections 9balls 9balls 9balls pick a section which is different in weight, attempt 2 - divide 3 sections 3balls 3balls 3 balls pick a section which is different in weight, Attempt-3- divide 3 sections 1ball 1ball 1ball pick a ball which is in different in weight Attempt 3 - Menos

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