Part 4 · Biostatistics and Research Methods

36. Probability, Correlation and Regression

~2 min read

Same concept, other depth: Foundation →

Dr. Amy

your study friend

Dear Doctor, shall we discuss & understand?

Sweet, clear and patient — like a friend who really wants you to get it. I believe in you — let's grow step by step.

Your tutor:

Voice chat works best in Chrome or Edge — you can also read, listen and type below.

Complement: P(not A) = 1 − P(A).
Addition: P(A ∪ B) = P(A) + P(B) − P(A ∩ B); for mutually exclusive events P(A ∩ B) = 0.
Multiplication: P(A ∩ B) = P(A) × P(B|A); = P(A) × P(B) only if independent.
Conditional and Bayes: P(D|T+) = P(T+|D)P(D)/P(T+), which links sensitivity to PPV (Concept 25).

Loading the rest of this concept…

Talk it through with Dr. Amy

Dear Doctor, I'll teach a little, then listen to you — slowly, warmly, and at your pace.

Finished this one?

No test, no score — just a tick for you, kept on your own device.

Connected to this topic

Educational only — not a substitute for clinical judgement, supervision, or local guidelines.

Loading…