Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack
GMAT Club

 It is currently 24 Mar 2017, 10:55

### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# A coin is thrown 5 times-, what is the probability first

Author Message
Director
Joined: 08 Jul 2004
Posts: 598
Followers: 2

Kudos [?]: 226 [0], given: 0

A coin is thrown 5 times-, what is the probability first [#permalink]

### Show Tags

29 Sep 2004, 08:40
00:00

Difficulty:

(N/A)

Question Stats:

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

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

A coin is thrown 5 times-, what is the probability first three all being head up and latter two both not being headup?
Director
Joined: 20 Jul 2004
Posts: 593
Followers: 2

Kudos [?]: 129 [0], given: 0

### Show Tags

29 Sep 2004, 09:18
I have been too dumb today. I see it as a simple 1/32.
Is there anything hidden?
Director
Joined: 08 Jul 2004
Posts: 598
Followers: 2

Kudos [?]: 226 [0], given: 0

### Show Tags

29 Sep 2004, 09:22
No you are very bright. I don't know anything hdden or not. Can you please explain how you got this answer?
Thanks a ton
S
Director
Joined: 20 Jul 2004
Posts: 593
Followers: 2

Kudos [?]: 129 [0], given: 0

### Show Tags

29 Sep 2004, 09:27
Huh, some releif.

Total number of cases = 2^5 (2 for each flip of the coin) = 32
Favourable case = 1 (In general you'd see problems requiring 3H and 3T, where we try to arrange Hs and Ts. In this problem, they have defined their favourite spots themselves - first 3 are H and last 2 are Ts)
Pb = 1/32
29 Sep 2004, 09:27
Display posts from previous: Sort by