Master Your Interview
Top 36 Probability Interview Questions
Entry Junior Mid Senior Expert
Probability Theoretical Questions
Q1:
What is a Probability Distribution?
Entry
Q2:
What is the difference between the Bernoulli and Binomial distribution?
Junior
Q3:
What is the difference between a Combination and a Permutation?
Junior
Q4:
What's the difference between Probability Mass Functions and Density Probability Functions?
Junior
Q5:
What's the difference between Binomial Distribution and Geometric Distribution?
Mid Q6:
How do you transform a Skewed Distribution into a Normal Distribution?
Mid Q7:
What's the difference between Disjoint Events and Independent Events?
Mid Q8:
What's the difference between Cumulative Distribution Functions and Probability Density Functions?
Mid Q9:
When is an event Independent of Itself?
Mid Q10:
What is the Bayesian approach to probability?
Mid Q11:
Name some Probability Distributions you know
Mid Q12:
What is a Poisson process?
Mid Q13:
Related To: Naïve Bayes
What's the difference between the likelihood and the posterior probability in Bayesian statistics?
Related To: Naïve Bayes Mid Mid Mid Q16:
How would you check if two events are Independent?
Senior Q17:
Name some methods you will use to estimate the Parameters of a Probability Distribution
Senior Q18:
What is the Cumulative Distribution Function?
Senior Q19:
Explain if the inference using the Frequentist Approach will always yield the same result as the Bayesian approach?
Senior Senior Q21:
What is the difference between Bayesian Estimation and Maximum Likelihood Estimation?
Expert Expert Probability Practical Challenges
Q1:
Presidential Election Challenge: What is the probability that A or B wins the election?
A or B wins the election?
Junior Q2:
Rolling a fair die event challenge
Junior Q3:
Box challenge: Which box has a higher probability of getting cards of the same color and why?
Junior Q4:
Flipping the Unfair Coin challenge
Mid Q5:
True Positive and False Positive challenge
Mid Q6:
Three Ants Challenge
Mid Q7:
Ana and Carly Challenge
Mid Q8:
A coin was flipped 1000 times, and 550 times it showed up heads. Do you think the coin is biased?
1000 times, and 550 times it showed up heads. Do you think the coin is biased? Mid Q9:
Interview challenge: If you feel that you had a good first interview, what is the probability you will receive a second interview?
Mid Q10:
Two cards challenge: What is the probability that the two cards are not in the same color and not in the same number?
Mid Mid Q12:
Product Purchase Challenge
Senior Senior Senior 
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