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.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 500,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

84% (01:49) correct
16% (00:56) wrong based on 193 sessions

HideShow timer Statistics

GMATT randomly guesses the answers to a five-question true/false section on his stats final. If there is a 0.50 probability of making the correct choice on each question, then the probability that GMATT misses no questions is:

GMATT randomly guesses the answers to a five-question true/false section on his stats final. If there is a 0.50 probability of making the correct choice on each question, then the probability that GMATT misses no questions is:

A) 0.000 B) 0.200 C) 0.500 D) 0.031

= 0.5^5 = close to 0.000

I make it D - 0.5 x 0.5 x 0.5 x 0.5 x 0.5 - which is 1/32 or closest to 0.31

GMATT randomly guesses the answers to a five-question true/false section on his stats final. If there is a 0.50 probability of making the correct choice on each question, then the probability that GMATT misses no questions is:

GMATT randomly guesses the answers to a five-question true/false section on his stats final. If there is a 0.50 probability of making the correct choice on each question, then the probability that GMATT misses no questions is:

You should have use this if they had asked he atleast got 1 right then that P = 1-( P( no right) )

here it is asked he doesnt miss all you have skipped the case when he missed 1,2,3,4 questions wrong. p(1) = 1/2 p2 = 1/4 p3 = 1/8 p4 = 1/16 now subtract p1+p2+p3+p4 = 0.9375 from 31/32=0.96875 you will get p =0.03125 Hence D..... Do not down the cases you didnt considered . Hope this helps. _________________

GMATT randomly guesses the answers to a five-question true/false section on his stats final. If there is a 0.50 probability of making the correct choice on each question, then the probability that GMATT misses no questions is:

A) 0.000 B) 0.200 C) 0.500 D) 0.031

= 0.5^5 = close to 0.000

I make it D - 0.5 x 0.5 x 0.5 x 0.5 x 0.5 - which is 1/32 or closest to 0.31

yup yup agree with D. 0.031.

thought 0.5 to the power 5 would result in negligible value close to 0.

GMATT randomly guesses the answers to a five-question true/false section on his stats final. If there is a 0.50 probability of making the correct choice on each question, then the probability that GMATT misses no questions is:

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email. _________________

Final decisions are in: Berkeley: Denied with interview Tepper: Waitlisted with interview Rotman: Admitted with scholarship (withdrawn) Random French School: Admitted to MSc in Management with scholarship (...

Last year when I attended a session of Chicago’s Booth Live , I felt pretty out of place. I was surrounded by professionals from all over the world from major...

The London Business School Admits Weekend officially kicked off on Saturday morning with registrations and breakfast. We received a carry bag, name tags, schedules and an MBA2018 tee at...

I may have spoken to over 50+ Said applicants over the course of my year, through various channels. I’ve been assigned as mentor to two incoming students. A...