What symbols can I use to represent different levels of probability? [closed]

1. What is the symbol for probability level?
2. What are the 3 ways to represent probability?
3. What does ∑ mean in statistics?
4. What symbol represents confidence level in statistics?

What is the symbol for probability level?

Note: P ( x ) P(x) P(x) is the probability of the random variable x occurring. The P is a capital letter.

What are the 3 ways to represent probability?

Probabilities can be represented as a ratio, percentage, fraction or as a decimal; I often point this out to students, so they are alert to the multiple ways we represent odds.

What does ∑ mean in statistics?

1. Simple sum. The symbol Σ (sigma) is generally used to denote a sum of multiple terms. This symbol is generally accompanied by an index that varies to encompass all terms that must be considered in the sum.

What symbol represents confidence level in statistics?

Where: CI = the confidence interval. X̄ = the population mean. Z* = the critical value of the z distribution.