diff --git a/README.md b/README.md index 19979f0..e253f85 100644 --- a/README.md +++ b/README.md @@ -2,11 +2,41 @@ PhD in bioinformatics/biostatistics -## Test Statistics +## Test statistics Six candidates were short-listed for the technical interview at MOS, one at a foreign institute. -1. Choice of programming languages - +### 1. Choice of programming languages + -2. Average scores of 10 questions - + +### 2. Average scores of 10 questions + + +## General feedback by question +Q1. statisfactory performance with the highest average score. However, it is observed that candidate spent too much time (~10 mins), indicating that they were not very familiar with basic list and set operation + +Q2. moderate performance, many candidates seem to be oblivious about the data type `string` and had little idea in common string operation + +Q3. moderate performance indicates inadequate knowledge in the concept of sample vs population statistics. (Indeed, the answers could have been guessed with some common sense: the general reason of using more samples is to reduce sample variance and avoid extreme.) + +Q4. only one candidate got the correct answer (I am impressed!), most candidates were unable to differentiate normal distribution and standard normal distribution (which is a special case of normal distribution) + +Q5. satisfactory performance, most candidates got at least 5a correct. + +Q6. satisfacotry performance, most candidates were familiar with the basic conditional operators and iteration + +Q7. no candidates could correctly compute the maximum, indicating inadequate experience in programming, especially in the use of variable + +Q8. satisfactory performance, most candidates understood the concept of recurrence, though computing it using iteration reminded a challenge + +Q9. moderate performance. Q9 is very similar to Q8, only that one had to compute the two preceding terms (in addition to one). Only two candidates got the correct answer: one with recursion and one with iteration, I am very impressed! + +Q10. no one could secure any marks from Q10. Indeed, the number-of-route problem is a combinatorics in a disguised form. If you are interested, please see the detailed explaination in the suggested answer. + +## General advice +1. If you use Python 2, switch to Python 3 ASAP! +2. Code more, code more, and code more! + +$*$ If you have questions, please do not hesitate to contact me via email(tinaho_ok@hotmail.com) or [LinkedIn](https://www.linkedin.com/in/tianlin-he-b8332b98/) + +$*$ You may freely use and spread the questions and answers as you wish. Just direct to this address: [bioinf-stat-interview](https://github.com/tianlinhe/hannover)