Binomial Theorem > How to read a binomial distribution table

## How to read a binomial distribution table: Overview

Probably the easiest way to solve one type of binomial distribution problem is to look the answer up in a table. The binomial distribution table on this site gives you the probabilities for less than or equal to a certain *n*. At first glance the table might seem confusing, mostly because there isn’t just *one* table — there are several! However, the multiple tables actually make it *easier* for you to solve a binomial problem because there’s a separate table for each value of n (the number of trials). This means there’s no checking across multiple columns to get the answer you need.

## How to read a binomial distribution table (Video)

Watch this video on how to read a binomial distribution table or scroll down for a Flash tutorial:

## How to read a binomial distribution table(Flash)

This Flash tutorial shows you how to read a binomial table to find n=9, p=.8, and X=less than or equal to 6.

## How to read a binomial distribution table: Issues

The **binomial table** can be daunting to look at, and sometimes it doesn’t give you the answers you need (you might want n=79 for example, or you might want to find the probability of finding the probability of *exactly* X –as opposed to less than or equal to X). The extra work associated with less-than-simple uses of the binomial table means that often, using the binomial formula is the quickest way to figuring out a binomial problem.

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