Statistics & Experimentation Interview Questions

Review this list of 83 Statistics & Experimentation interview questions and answers verified by hiring managers and candidates.

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Metrics moved in different directions, how do you interpret the results and decide next steps?
8 months ago
Walk me through how you'd assess the success of a beta launch.
a year ago2 answers
What does your confidence level mean when building a confidence interval? Has video answer
a year ago1 answer
What is A/B testing?
3 years ago
How would you measure engagement for a productivity app? What features or behaviors would you track?
a year ago
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A discount coupon is given to N riders. The probability of using a coupon is P. What is the probability that one of the coupons will be used?
2 years ago2 answers
How would you explain a confidence interval to a non-technical audience?
2 answers
Walk me through how you've used user funnel data to drive an experiment.
a year ago
Difference between power and confidence level.
2 answers
Explain the Central Limit Theorem (CLT) and why it is useful.
2 answers
Tell me about a time you conducted a failed experiment.
a year ago
When rolling two fair dice, what is the likelihood of the sum being less than 12?
2 answers
In an A/B test, how can you check if assignment to the various buckets was truly random?
2 answers
What are the z-tests and t-tests?
+29 months ago
Say you flip a coin 10 times and observe only one head. What would be your null hypothesis and p-value for testing whether the coin is fair or not?
1 answer
A newly launched mobile app has a 25% drop-off during sign-up. How would you investigate the issue?
a year ago
Explain Type I and Type II errors and the trade-offs between them.
1 answer
Which is greater: 'log(120)' or 'log(1) + log(2) + log(3) + log(4) + log(5)'?
2 answers
What is the expectation of the variance?
1 answer
You’re told engagement is flat even though new users are increasing—what questions would you ask and what data would you look at?
a year ago

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Statistics & Experimentation Interview Questions

Metrics moved in different directions, how do you interpret the results and decide next steps?

Walk me through how you'd assess the success of a beta launch.

What does your confidence level mean when building a confidence interval? Has video answer

What is A/B testing?

How would you measure engagement for a productivity app? What features or behaviors would you track?

A discount coupon is given to N riders. The probability of using a coupon is P. What is the probability that one of the coupons will be used?

How would you explain a confidence interval to a non-technical audience?

Walk me through how you've used user funnel data to drive an experiment.

Difference between power and confidence level.

Explain the Central Limit Theorem (CLT) and why it is useful.

Tell me about a time you conducted a failed experiment.

When rolling two fair dice, what is the likelihood of the sum being less than 12?

In an A/B test, how can you check if assignment to the various buckets was truly random?

What are the z-tests and t-tests?

Say you flip a coin 10 times and observe only one head. What would be your null hypothesis and p-value for testing whether the coin is fair or not?

A newly launched mobile app has a 25% drop-off during sign-up. How would you investigate the issue?

Explain Type I and Type II errors and the trade-offs between them.

Which is greater: 'log(120)' or 'log(1) + log(2) + log(3) + log(4) + log(5)'?

What is the expectation of the variance?

You’re told engagement is flat even though new users are increasing—what questions would you ask and what data would you look at?

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