BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

Travel by bus - probability

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 49
Joined: Mon Apr 28, 2008 5:33 am
Thanked: 2 times
by ramyaravindran » Fri Feb 19, 2010 11:18 am
I do not have OA for this question.

A particular hospital is open only in the last week of every month. Assume that the hospital is open all 7 days of the last week. If 10 patients travel by bus to the hospital, what is the probability that atleast 2 patients travel on the same day?

Can someone help with this question.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
User avatar
Legendary Member
Posts: 1132
Joined: Mon Jul 20, 2009 3:38 amFollowed by: 6 members
Location: India
Thanked: 64 times
GMAT Score:760

by harsh.champ » Fri Feb 19, 2010 11:24 am
ramyaravindran wrote:I do not have OA for this question.

A particular hospital is open only in the last week of every month. Assume that the hospital is open all 7 days of the last week. If 10 patients travel by bus to the hospital, what is the probability that atleast 2 patients travel on the same day?

Can someone help with this question.
Is it necessary that each day 1 person has to travel by the bus????
I mean to ask :-Can the bus go empty on any day??
In both the cases the answer would be different.
It takes time and effort to explain, so if my comment helped you please press Thanks button :)



Just because something is hard doesn't mean you shouldn't try,it means you should just try harder.

"Keep Walking" - Johnny Walker :P
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Senior | Next Rank: 100 Posts
Posts: 85
Joined: Sat Jan 30, 2010 3:49 am
Location: Hyderbad, India
GMAT Score:660

by abhi.genx7 » Fri Feb 19, 2010 12:13 pm
Would like to know how to solve in both the cases.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 1275
Joined: Thu Sep 21, 2006 11:13 pmFollowed by: 2 members
Location: Arabian Sea
Thanked: 125 times

by ajith » Fri Feb 19, 2010 12:24 pm
ramyaravindran wrote:I do not have OA for this question.

A particular hospital is open only in the last week of every month. Assume that the hospital is open all 7 days of the last week. If 10 patients travel by bus to the hospital, what is the probability that atleast 2 patients travel on the same day?

Can someone help with this question.
This problem can be done by assuming Poisson distribution for the arrival rate which is way beyond GMAT. On top of that the question sounds very vague.
Always borrow money from a pessimist, he doesn't expect to be paid back.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 1022
Joined: Mon Jul 20, 2009 11:49 pmFollowed by: 2 members
Location: Gandhinagar
Thanked: 41 times

by shashank.ism » Sat Feb 20, 2010 8:47 am
ramyaravindran wrote:I do not have OA for this question.

A particular hospital is open only in the last week of every month. Assume that the hospital is open all 7 days of the last week. If 10 patients travel by bus to the hospital, what is the probability that atleast 2 patients travel on the same day?

Can someone help with this question.
I think the probability is 1 as there are more patients than no. of days so atleast 2 patients will surely go by bus the same day...
so probability =1 .
My Websites:
www.mba.webmaggu.com - India's social Network for MBA Aspirants

www.deal.webmaggu.com -India's online discount, coupon, free stuff informer.

www.dictionary.webmaggu.com - A compact free online dictionary with images.

Nothing is Impossible, even Impossible says I'm possible.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1