# What do the probability symbols mean?

Contents

## What does the U symbol in probability mean?

U(a,b) uniform distribution. equal probability in range a,b.

## What does the N mean in probability?

The letter n denotes the number of trials. There are only two possible outcomes, called “success” and “failure,” for each trial. The letter p denotes the probability of a success on one trial, and q denotes the probability of a failure on one trial.

## What does A and B mean in probability?

Conditional probability: p(A|B) is the probability of event A occurring, given that event B occurs. … Joint probability: p(A and B). The probability of event A and event B occurring. It is the probability of the intersection of two or more events. The probability of the intersection of A and B may be written p(A ∩ B).

## What is this symbol μ in statistics?

The symbol ‘μ’ represents the population mean.

## What is N in a sample?

N usually refers to the population size. n usually refers to the sample size.

## What are the 3 rules of probability?

Lesson Summary

There are three basic rules associated with probability: the addition, multiplication, and complement rules.

## What does S mean in probability?

The sample space S for a probability model is the set of all possible outcomes. For example, suppose there are 5 marbles in a bowl. One is red, one is blue, one is yellow, one is green, and one is purple.

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