# Probability

How many unordered sets are possible that contain four objects chosen from thirteen?

1. 👍 0
2. 👎 0
3. 👁 104
1. Choosing r unordered sets from n is given by
nCr = n!/((n-r)!r!)

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Algebra

Observe the following sets and answer he quesions given below. A = The set of all residens in Mumbai. B = he set of all residens in Bhopal. C = he sets of all residents in Maharashtra. D = The sets of all residents in India. E =

asked by Ratan on June 17, 2010
2. ### Physics

Air molecules create an upward force that impacts the free fall of objects on the surface of the Earth, differing form the way an object would fall in vacuum. Question: What kind of objects should be used for experimentation if we

asked by Joan on September 16, 2012
3. ### English

If I'm writing about the Thirteen Colonies in my paper. Does Thirteen Colonies need to be capitalized. example The Learner will develop a understanding of the three different regions in the thirteen colonies.

asked by Told on February 12, 2011
4. ### Economics

select a country and an economic concern, such as population, unemployment, etc. Search the Library and Internet for data sets for the concern that you have chosen. Where were you able to find data sets? What is the relationship

asked by John on October 26, 2009
5. ### Science

Heat flows in which direction? A)from solid objects to liquids B)from larger objects to smaller objects C)from warmer objects to cooler objects D)from more dense objects to less dense objects THANKS!

1. ### Science

The strength of the force of gravity between two objects is determined by which of the following factors? Select all that apply. A. the masses of the objects B. the distance between the objects C. the volumes of the objects D. the

asked by Boi on May 12, 2018

I need a little help on this worksheet I got... I have an answer but I'm not sure if it is correct. ALGEBRA--- Translate each verbal expression into an algebraic expression. Then, simplify the expression. 1. Two sets of the sum of

asked by Sahana Epari on July 4, 2009
3. ### English expression

Who are teenagers? They are young people who are from thirteen to nineteen. Look at the words such as thirteen, fourteen....nineteen. They all have teen, so people who are from thirteen to nineteen are called teenagers.

asked by John on November 17, 2007
4. ### English

A Thirteen Letter Word That Means "A Whole Bunch". The Thirteen Letters Are As Follows: NOSOREGGTIACN

asked by Colleen on September 1, 2011
5. ### writing

Combines the pairs of sentences below into compound sentenvces three different ways. Punctuate correctly. One pair of sentences should not be joined because the ideas are not related. So can you tell me if the sentences are

asked by Debra on July 13, 2010

More Similar Questions