Preguntas de entrevista de Business operations analyst

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Google
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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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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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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Google

Pretend 1% of the population has a disease. You have a test that determines if you have that disease, but it's only 80% accurate and 20% of the time you get a false positive, how likely is it you have the disease.

8 respuestas

1%. The first sentence gives you all the info you need.

1% chance if using global population. Chances would decrease or increase depending on certain variable or demographic factors so I would say you need more data to give a specific answer. Things like age , gender , race , need to be taken into consideration if you are a 33 year old male and the subject disease is ovarial cancer then you have 0 percent chance . If you are a 40 year old nun and the disease is The clap you have less probably of being infected than say a 26 year old prostitute .. Menos

Sample: 1,000 X=10 P=.8 If the test is only 80% accurate then 8 of the 10 infected will be positive and 2 will walk around unbeknownst, but 20% of the non-infected population will be falsely identified, 1000-10=990 (non-infected) 990*.2=198 (false positive) + 8 (true positive)= 296 (total positive tests) Of this population only 8/296=2.7% were correctly identified. This is the chance you have the disease Menos

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FedEx Ground

Name a situation where you didn't know what to do and you still were able to get the job done.

7 respuestas

No one knows all the answers, if you don't know find someone who does. Do not leave employees waiting for an answer for too long otherwise you lose credibility. Menos

I'll ask the manager ask a supervisor or a senior from the company he knows what they're doing and I only have to be told once Menos

I would say check my work surrounding or help out a team mate

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Uber

100 drivers apply to uber to be a driver. X percent does not have city knowledge, y of them miss their screening meetings, z of them did not passed background check and can apply in 6 months etc etc.. Base on listed constraints, how many of them can start with Uber?

7 respuestas

100-XUYUZ U= Union

Depends on the overlap...

The above answers are wrong. The answer is xUy. U=Union. You do not need city knowledge to drive for Uber. Menos

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Intertek

tell me about yourself, tell us about your last company, and salary expectations

6 respuestas

Waiting period will be 3 months but we can negotiate to 1 month and I am working with TCS from past 6 years currently I an handling team of 21 associate where 14 are processor and 7 QC'er . I was the part of the transition and also with the reverse transition. Menos

Waiting period will be 3 months but we can negotiate to 1 month and I am working with TCS from past 6 years currently I an handling team of 21 associate where 14 are processor and 7 QC'er . I was the part of the transition and also with the reverse transition. Menos

I have completed by Hotel Management of 03 years with Mumbai University, having an total 14 years experience in Hospitality and Administration. Was working with Curefit as an Cluster Manager. Salary expectations is some around 12 lacs as previously I was drawing 10.85 lacs Annually. Menos

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JetBlue

Same questions as listed on Glassdoor. Now I'm waiting for results . Interview on Oct 23.

6 respuestas

Did u send a thankyou letter? It is always good to ask gor buisness cards after an interview. Like that you can follow up Menos

Did you get the job will you be in the Dec 13th class

I will be in the dec 13 class. Are you ?

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Uber

32 qs test

6 respuestas

can you please send the files to my id iitb.manish@gmail,com It will be great help. Thanks. Menos

Did anyone actually receive the file?

Hii, Can you please send the files to my id madhu.praveen123@gmail,com It will be great help. Thanks. Menos

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