# Probability Distributions

One of the two types of question in Foretold is the "distribution" type, made for estimating continuous distributions.
Currently a very similar distribution input method is used as with the application Guesstimate. All Guesstimate functions and distributions are supported.

## Basic Input

The recommended way of entering most numbers is by using the basic input. Type
"10 to 30"
In order to submit a lognormal distribution with a 5th percentile at 10 and a 95th percentile at 30. If the first number of these two is negative, then the distribution will be normal.

## Function Input

If you would like to pick a specific distribution and it's corresponding parameters, you can use the function input. If you are entering a distribution, then you will need to refer to call a specific distribution. Here are a few common ones available. A longer list is here.
 Distribution Use Cases Syntax Beta Estimations proportions or percentages, where the answer must be between 0 and 1. =beta(α,β) Normal Most uncertain things, where the uncertainty is symmetric around the median. =normal(μ,σ) Lognormal Similar to normal, but with a long tail on the right. Cannot be 0 or less. =lognormal(μ,σ) Uniform A flat distribution, where everything inside is equally likely. `=uniform`(a,b) Multimodal Weighted combination of distributions, giving multiple peaks. =mm(d1, ..., [w1, ...])