GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 20 Jun 2018, 16:00

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Probability - hypergeometric disrtribtuion

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Intern
Intern
avatar
Joined: 17 Sep 2017
Posts: 1
Probability - hypergeometric disrtribtuion [#permalink]

Show Tags

New post 17 Sep 2017, 17:50
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

HideShow timer Statistics

A hiring manager for an engineering firm needs to fill 10 positions. She has narrowed the potential candidates down to a group of 20. among the 10 she will ultimately choose, she wants to be sure she selected the 5 best engineers.

so it is hypergeometric distribution and not binomial because there is a finite number of places to be filled. and a success in the context of the problem would be the hiring manager selected the 5 best engineers out of the group of 20.

calculate the probability that the hiring manager chose all 5 of the best engineers
calculate the probability that she chose only 2 of the best engineers
calculate the probability that she chose at least 2 of the best engineers

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
BSchool Forum Moderator
User avatar
V
Joined: 26 Feb 2016
Posts: 2831
Location: India
GPA: 3.12
Premium Member
Probability - hypergeometric disrtribtuion [#permalink]

Show Tags

New post 17 Sep 2017, 19:55
CIAVALE wrote:
A hiring manager for an engineering firm needs to fill 10 positions. She has narrowed the potential candidates down to a group of 20. among the 10 she will ultimately choose, she wants to be sure she selected the 5 best engineers.

so it is hypergeometric distribution and not binomial because there is a finite number of places to be filled. and a success in the context of the problem would be the hiring manager selected the 5 best engineers out of the group of 20.

calculate the probability that the hiring manager chose all 5 of the best engineers
calculate the probability that she chose only 2 of the best engineers
calculate the probability that she chose at least 2 of the best engineers



Hi CIAVALE,

Please follow the rules while posting questions(Rule #4,7, and 8)

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

_________________

You've got what it takes, but it will take everything you've got

Probability - hypergeometric disrtribtuion   [#permalink] 17 Sep 2017, 19:55
Display posts from previous: Sort by

Probability - hypergeometric disrtribtuion

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.