How to read a binomial distribution table

Probably the easiest way to solve one type of binomial distribution problem is to look the answer up in the binomial distribution table. The binomial distribution table on this site gives you the probabilities for less than or equal to a certain n.

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.

binomial probability formula

Binomial distribution formula

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 formula is the quickest way to figuring out a binomial problem.

How to use the binomial formula to solve a binomial problem.

Related posts:

  1. How to Solve a Binomial Distribution Problem Using the Binomial Formula
  2. How to Work a Binomial Distribution Formula
  3. How to find the mean: probability distribution or binomial distribution
  4. How to Use the Binomial Distribution Calculator
  5. Standard deviation: binomial distribution
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3 Responses to “How to read a binomial distribution table”

  1. Angie Widdows said:

    Oct 01, 09 at 10:07 am

    This example seems VERY self explanatory but When I do examples from the book, I am still lost. When I follow the chart, I still miss the problems. Are all charts different? Maybe I was using a chart that was not for the particular problem

  2. Rebecca Gamble said:

    Oct 01, 09 at 1:54 pm

    I have found by using the formula instead of relying on “xCx” in the calculator, allows you to memorize the x and stuff and also find out where you miss up.

  3. Stephanie said:

    Oct 04, 09 at 8:27 am

    Possibly. The binomial distribution table on this site gives you the probabilities for less than or equal to a certain n. If you have greater than–you would need a different table. However the calculator in this site works for all situations :)


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