Phd Engineer Interview Questions

94 phd engineer interview questions shared by candidates

X and Y are two independent variables with uniform distributions form 0 to 1. Z = X + Y. What is the variance of Z. What is the correlation between X and Z? What does the distribution of Z look like?
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Quantitative Analyst (PhD Graduate Programmer)

Interviewed at Susquehanna International Group

3.8
Jun 18, 2020

X and Y are two independent variables with uniform distributions form 0 to 1. Z = X + Y. What is the variance of Z. What is the correlation between X and Z? What does the distribution of Z look like?

Bag with 100 coins. One of them is double headed, the rest are fair. You flip it n times and get n heads. What would your intuition be on whether you have the double headed coin or not? What would the probability be that you have the double headed coin be as n goes to infinity? How many flips would it take for you to be 50% sure? You flip it seven times, what is the probability you have the double headed coin?
avatar

Quantitative Analyst (PhD Graduate Programmer)

Interviewed at Susquehanna International Group

3.8
Jun 18, 2020

Bag with 100 coins. One of them is double headed, the rest are fair. You flip it n times and get n heads. What would your intuition be on whether you have the double headed coin or not? What would the probability be that you have the double headed coin be as n goes to infinity? How many flips would it take for you to be 50% sure? You flip it seven times, what is the probability you have the double headed coin?

for a 6x5 character array (like the one displayed on any TV app), given the cursor is currently at the letter a. define a function to return a certain key sequence (U, D, L, R, *) to go to a certain character (argument to the function).
Mar 9, 2019

for a 6x5 character array (like the one displayed on any TV app), given the cursor is currently at the letter a. define a function to return a certain key sequence (U, D, L, R, *) to go to a certain character (argument to the function).

Tell of a time when you were misunderstood and how you handled it. Tell about your transition from high school to college, and how you balanced everything. Tell of a conflict with a co-worker and the resolution. Tell of a time when you were in a group (but not the leader, and how you made a meaningful contribution. Tell the process you go through to learn difficult concepts.
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Chemical Engineer (PhD)

Interviewed at Sandia National Laboratories

4.2
Jan 31, 2013

Tell of a time when you were misunderstood and how you handled it. Tell about your transition from high school to college, and how you balanced everything. Tell of a conflict with a co-worker and the resolution. Tell of a time when you were in a group (but not the leader, and how you made a meaningful contribution. Tell the process you go through to learn difficult concepts.

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