Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 05 May 2015, 06:53

# Today:

Wharton Round 3 Decisions.   |   Join Chat Room for Live Updates

### 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 scientist recorded the number of eggs in each of 10 birds

Author Message
TAGS:
Manager
Joined: 06 Nov 2008
Posts: 54
Followers: 0

Kudos [?]: 2 [0], given: 0

A scientist recorded the number of eggs in each of 10 birds [#permalink]  08 Nov 2008, 18:47
A scientist recorded the number of eggs in each of 10 birds’ nests. What was the standard deviation of the numbers of eggs in the 10 nests?
(1) The average (arithmetic mean) number of eggs for the 10 nests was 4.
(2) Each of the 10 nests contained the same number of eggs.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
Current Student
Joined: 28 Dec 2004
Posts: 3391
Location: New York City
Schools: Wharton'11 HBS'12
Followers: 13

Kudos [?]: 181 [0], given: 2

Re: eggs---29 [#permalink]  08 Nov 2008, 19:36
i will say B

SD=0 if each nest has the same number of eggs
Re: eggs---29   [#permalink] 08 Nov 2008, 19:36
Similar topics Replies Last post
Similar
Topics:
2 Each year Americans buy a record number of new books from 2 16 Oct 2014, 07:03
8 A scientist recorded the number of eggs in each of 10 birds' 10 11 Sep 2012, 03:50
Agriculture scientists studying the Macaca Egg plants in 2 01 Jun 2009, 09:23
A scientist recorded the number of eggs in each of 10 birds 2 30 Sep 2006, 15:38
A scientist recorded the number of eggs in each of the 10 3 19 Dec 2005, 19:06
Display posts from previous: Sort by