OR Analyst applicants have rated the interview process at 4R Systems with 2.3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 25% positive. To compare, the company-average is 40.9% positive. This is according to Glassdoor user ratings.
Candidates applying for OR Analyst roles take an average of 7 days to get hired, when considering 4 user submitted interviews for this role. To compare, the hiring process at 4R Systems overall takes an average of 7 days.
Common stages of the interview process at 4R Systems as a OR Analyst according to 4 Glassdoor interviews include:
I applied through college or university. The process took 1 week. I interviewed at 4R Systems in Oct 2017
No offer
Negative experience
Easy interview
Application
I interviewed at 4R Systems (Philadelphia, PA) in Apr 2014
Interview
I interviewed with the vice president of analytics. The first round is a 20 minutes phone interview. The interviewer presents the company, ask about your background and gives you a basic probability exercise to solve. The second round is a one hour phone interview, which is a longer discussion, with more probability exercises.
Interview questions [1]
Question 1
Probability questions that are solved using Bayes rule, or drawing probability trees.
Just asking probability related questions. But the attitude of the interviewer is not so nice,even some kind of very rude, he will hang up the phone immediately when you got stuck.
Interview questions [1]
Question 1
3 coins, 1 fair and 2 biased(with 2 heads), what is the probability that it was a fair coin given we get the head? Explain this result with non-statistical languages to someone who does not know the probability theory
Contacted by VP Analytics through mail. Applied via campus job board in Atlanta. Contacted a week later. Second round pending. end of month. Very nice man. a a a
Interview questions [1]
Question 1
Three coins, two with heads on both sides, other air, explain to a 12 year old why P(fair|Heads)=1/5
I applied through college or university. I interviewed at 4R Systems
Interview
Phone interview. First, briefly introduce the role and contribution of the company then answer some statistical question. The interviewee first was very kind, but he became strict when you spoke the wrong answer. Maybe he is willing to give you some pressure.
Interview questions [2]
Question 1
There are three coins, one is fair coin and the other two are double-head. What probability that you get the flower side when you flip just one time.
Please use statistical language to explain why you get this answer. And in addition use plain language to explain the reason to a fifteen-year-old child who knows nothing about statistic.