Skill Qualification Task 5 -- Conditional Probability
The problems to submit are in red at the bottom.
Here is a site with several more examples:
Here is the Gilmore Dining hall problem we looked at before:
Ate at Gilmore
Did not eat at
People surveyed who got violently ill yesterday
People surveyed who did not get violently ill
And repeated with the symbols for your convenience:
We have looked at simple (marginal) probability and joint (and, or) probability so far. Now let's consider CONDITIONAL probab
Suppose we look only at people who ate at Gilmore, highlighted in yellow above.
In that case, what is the probability that
group got sick?
That would be 25/45 or .556
The expression for that example would be: P(S|G) read: "The probability of S given G". This means to ask, "What is the proba
the person selected ate at Gilmore?"
Here's another example: What is the probability that a person did not eat at Gilmore, given the person got sick? Another way o
might be: "If we only look a...
15 Million Students Helped!
Sign up to view the full answer