Table of Contents

## What is the formula for P A and B?

Formula for the probability of A and B (independent events): p(A and B) = p(A) * p(B). If the probability of one event doesn’t affect the other, you have an independent event.

## Is P a B the same as P B A?

P(A|B) is the probability of A, given that B has already occurred. This is not the same as P(A)P(B.

**What is PA intersection B?**

Two events are mutually exclusive or disjoint if they cannot occur at the same time. The probability of the intersection of Events A and B is denoted by P(A ∩ B). If Events A and B are mutually exclusive, P(A ∩ B) = 0. The probability that Events A or B occur is the probability of the union of A and B.

### What is the formula of dependent events?

There are two types of events in probability which are often classified as dependent or independent events….Difference Between Independent and Dependent Events.

Dependent Events | Independent Events |
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3. Formula can be written as: P(A and B) = P(A) × P(B | A) | 3. Formula can be written as: P(A and B) = P(A) × P(B) |

### What is the value of P(A) and P(B) in the equation?

P (A) = 0.20, P (B) = 0.70, A and B are independent. The 0.14 is because the probability of A and B is the probability of A times the probability of B or 0.20 * 0.70 = 0.14.

**What is the formula for conditional probability?**

P(B|A) P(A and B) = P(A)P(B|A) or P(B|A) = P( A and B) P(A) Brent Clayton Homework #0 Summary of class notes 2/3/2011 The lecture notes for this particular day a centered on sections 2.4-2.5 in the Devore book. Basically the idea of conditional probability is presented here.

## What is the meaning of PP(B|a)?

P(B|A) This only applies when the events are independent of each other meaning event A has no effect on the probability of event B happening. The other case involes these two events when they are independent.

## What is the probability of A and B times the probability?

The 0.14 is because the probability of A and B is the probability of A times the probability of B or 0.20 * 0.70 = 0.14.