Operations coordinator Interview Questions

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Google
Business Operations Analyst was asked...2 February 2011

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

51 Answers

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. Less

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. Less

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. Less

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Zocdoc

What is your least favorite thing about humanity?

31 Answers

inane interview questions

The kardashians

Answering stupid questions from moronic interviewers.

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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 Answers

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 Less

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 Less

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

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Capital One

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

15 Answers

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 Answers

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 Answers

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. Less

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) Less

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

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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 Answers

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 .. Less

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 Less

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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 Answers

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. Less

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 Less

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 Answers

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. Less

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UnitedHealth Group

What would you do if you had three things that needed to get done ASAP and you were the only one in the office?

5 Answers

They want to know if you up understand TEAM work and COMMUNICATION. You are not an island unto yourself, ask a coworker or manager for assistance in prioritizing tasks or to take on one of the tasks. Less

Work on the most important to the least and do everything you can to get all tasks complete. Even if it means staying late to do it. Less

Basically, they are trying to find out how you respond to pressure.

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