Forum Home > GMAT > Quantitative > Problem Solving (PS)
Events & Promotions
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Jul 2710:00 AM PDT
-11:00 AM PDT
Are you struggling with the GMAT verbal section? Do tricky questions and lengthy passages overwhelm you? Don't worry—I've got you covered! In this video, I'll provide a detailed, actionable plan to help you significantly boost your verbal score.
Jul 2711:00 AM IST
-01:00 PM IST
Attend this session to learn how to Deconstruct arguments, Pre-Think Author’s Assumptions, and apply Negation Test.
Jul 2508:00 AM EDT
-11:59 PM EDT
More and more TTP students are earning impressive scores on the GMAT. Now is the perfect time to join the many GMAT students who made the switch to TTP and surpassed their wildest expectations on test day.- Jul 28
10:00 AM PDT
-11:00 AM PDT
We will learn how to guess an answer choice better on the GMAT. If you are running out of time and want to guess on a few questions, these effective techniques will help you in making a smart guess. - Jul 28
11:00 AM IST
-01:00 PM IST
Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. - Jul 31
05:55 AM PDT
-12:30 PM PDT
MBA Application Walkthrough and Essay Review. You will have a chance to hear from experts covering the Top 15 MBA programs, covering details of the application and essays. 
Jul 3110:00 AM EDT
-11:59 PM PDT
Save 20% on Target Test Prep and Score in the 100th Percentile in GMAT Verbal! Our course uses techniques such as topical study and spaced repetition to maximize knowledge retention and make studying simple and fun.
Re: Quant Question of the Day Chat
[#permalink]
12 Jan 2024, 20:25
12 Jan 2024, 20:25
Ntaafuonua wrote:
What is SD of given set of numbers whose average is 5? 1. None of the numbers are greater than this Average 2. The Standard deviation is 5 when value of each of the given number is increased by 7 will be grateful if you can provide examples. to me B is the correct options. but i seem not to understand the statement 1
Thanks guys. I appreciate you.
@Bunuel. I read this earlier post by then i think i misinterpreted the statement 1 as;
example we could have a set {2,2,3,3,5} which has an average of 5 and a total of 15 which may have a different standard deviation from a set (5,5,5).
this got me confused.
Re: Quant Question of the Day Chat
[#permalink]
12 Jan 2024, 20:28
12 Jan 2024, 20:28
Expert Reply
Ntaafuonua wrote:
Ntaafuonua wrote:
What is SD of given set of numbers whose average is 5? 1. None of the numbers are greater than this Average 2. The Standard deviation is 5 when value of each of the given number is increased by 7 will be grateful if you can provide examples. to me B is the correct options. but i seem not to understand the statement 1
Thanks guys. I appreciate you.
@Bunuel. I read this earlier post by then i think i misinterpreted the statement 1 as;
example we could have a set {2,2,3,3,5} which has an average of 5 and a total of 15 which may have a different standard deviation from a set (5,5,5).
this got me confused.
(1) says: None of the numbers are greater than this Average.
So, {2,2,3,3,5} is NOT possible.
Re: Quant Question of the Day Chat
[#permalink]
12 Jan 2024, 20:35
12 Jan 2024, 20:35
@Bunuel, I don’t understand honestly. My bad! if I am complicating things. I know my quant knowledge is not as good as most of you guys on this platform. But I am ready to learn and improve my quant scores.
if the question says "none of the numbers are greater than this average" Clearly i understand it as "the various digits in the set cannot be more that the number 5" hence (1, 2, 3, 4 and 5) are all possible members of the set.
if the question says "none of the numbers are greater than this average" Clearly i understand it as "the various digits in the set cannot be more that the number 5" hence (1, 2, 3, 4 and 5) are all possible members of the set.
