Probability distributions

Practicing Statistics Interview Questions in Python

Conor Dewey

Data Scientist, Squarespace

What's a probability distribution?

• Indicates likelihood of an outcome
• Probabilities must add up to 1

¹ Wikimedia

Overview of common distributions

¹ Common Probability Distributions: The Data Scientists Crib Sheet

Overview of common distributions

¹ Common Probability Distributions: The Data Scientists Crib Sheet

Bernoulli distribution

plt.hist(bernoulli.rvs(p=0.5, size=1000))

Binomial distribution

plt.hist(binom.rvs(2, 0.5, size=10000))

Normal distribution

 

¹ Wikimedia

Poisson distribution

 

¹ Wikimedia

Poisson distribution

 

¹ 120 Data Science Interview Questions

Summary

• Definition of probability distributions
• Overview of common distributions
• Bernoulli, binomial, normal, and Poisson

Let's prepare for the interview!

Practicing Statistics Interview Questions in Python