SOLUTION: Jacobs & Johnson, an accounting firm, employs 15 accountants, of whom 9 are CPAs. If a delegation of 3 accountants is randomly selected from the firm to attend a conference, what i

Question 1118592: Jacobs & Johnson, an accounting firm, employs 15 accountants, of whom 9 are CPAs. If a delegation of 3 accountants is randomly selected from the firm to attend a conference, what is the probability that 3 CPAs will be selected? (Round your answer to three decimal places.)

Answer by ikleyn(52779) (Show Source): You can put this solution on YOUR website!
.

The probability is the ratio  .


Here  is the number of combinations of n objects taken k at a time.


When solving such problems, you must know what are these numbers and how to calculate them.

If you still don't know, read the lessons
    - Introduction to Combinations
    - PROOF of the formula on the number of Combinations
    - Problems on Combinations
    - OVERVIEW of lessons on Permutations and Combinations
in this site.

Also, you have this free of charge online textbook in ALGEBRA-II in this site
    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic "Combinatorics: Combinations and permutations".

Save the link to this textbook together with its description

Free of charge online textbook in ALGEBRA-II
https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson

into your archive and use when it is needed.

RELATED QUESTIONS
A committee of 5 is to be chosen from 12 members of the Board of Directors, 3 of whom are (answered by Edwin McCravy)

. A committee of 5 is to be chosen from 12 members of the Board of Directors, 3 of whom... (answered by Edwin McCravy)

How many different 15 persons committees can be formed each containing atleast 2... (answered by sudhanshu_kmr)

A committee of 7 people is to be chosen from a group of 9 managers and 6 accountants. The (answered by ewatrrr)

The proportion of public accountants who have changed companies within the last three... (answered by stanbon)

How many different 15 persons committees can be formed each containing at least 2... (answered by sudhanshu_kmr)

Is the mean salary of accountants who have reached partnership status higher than that... (answered by stanbon)

In an office, there are three secretaries, four accountants, and two receptionists. If a... (answered by greenestamps)