intermediate

Advanced Probability

General Skills

5 courses

Master probability from fundamentals through compound events, independence, tree diagrams, and real-world decision-making—building the skills to model, calculate, and interpret chance in everyday and professional contexts.

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Verified skills you'll gain

INTERMEDIATE

Computing Probabilities of Compound Events

INTERMEDIATE

Computing Probabilities of Simple Events

ADVANCED

Interpreting Probabilities

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You'll refresh core probability skills—computing single-event probabilities, using the complement rule, and counting outcomes in multi-step situations—so you're fully prepared for compound probability.

Course 2

Combining Events with Addition

4 lessons

17 practices

You'll learn to handle "or" probabilities—first for events that can't overlap, then for events that can—choosing the correct addition rule each time, and recognizing situations where "or" in everyday language doesn't translate to adding probabilities.

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Course 3

How Events Influence Each Other

5 lessons

20 practices

You'll learn how to tell whether one event affects another's probability, then apply the correct multiplication rule—for independent or dependent events—to calculate combined probabilities.

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Course 4

Tree Diagrams and Decisions

4 lessons

18 practices

You'll learn to systematically map every possible outcome path, calculate the probability of specific sequences, and determine the total likelihood of results in complex real-world scenarios.

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Course 5

Probability in Practice

4 lessons

14 practices

You’ll synthesize your skills to tackle complex, real-world applications of probability. From modeling multi-step chance events and detecting bias in games to making informed financial decisions using risk assessment, this course bridges theory and practice. You will also explore geometric probability by seeing how random simulations can be used to estimate mathematical constants like Pi.

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I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

Advanced Probability

Verified skills you'll gain

Trusted by learners working at top companies

Turn screen time into skills time

Join the 1M+ learners on CodeSignal

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