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.
Sep 0609:30 AM EDT
-12:30 PM EST
Top scores are possible when you enroll in a powerful EA course, taught live online + 6 months access to TTP OnDemand video courses included! Perfect class schedule and easy course access for working professionals. Class starts Sundays Sept. 6, 2026.
Sep 0201:00 PM EDT
-11:59 PM EDT
Take 30% off all study plans with code COURSEWORK - Expires on Monday 9/7
Sep 0401:30 AM EDT
-02:30 AM EDT
This Labor Day, turn your hard work into real score gains. From 615→715 in 15 days to 705 in 30 days, our students prove what's possible with personalized, expert guidance. Save up to 25% on 1-on-1 tutoring.
Sep 0410:00 AM EDT
-11:59 PM EDT
We’ve worked incredibly hard to build TTP into the best test prep experience possible, and it would mean a lot to us to win Newsweek’s 2026 Readers’ Choice Award for Best Test Prep. If TTP has helped you, we’d be incredibly grateful for your vote.
Sep 0712:01 AM PDT
-11:59 PM PDT
On the 7th, GMAT Club Tests will be Free! Including all the Quizzes, Questions, and Tests. 12 AM - 11:59 PM PDT
Sep 0712:30 AM EDT
-01:30 AM EDT
Tejas studied hard but kept repeating the same mistakes. After 3 attempts at 645, a focused 4-week strategy helped him identify and fix what was holding him back—leading to a 695 with just 12–15 hours of study per week.- Sep 07
10:00 AM PDT
-11:00 AM PDT
A complete walkthrough of GMAT Club’s free 12-week GMAT study plan: what you study each week, how progress and goals are tracked, how the error log works, and how your practice unlocks paid tools at no cost. - Sep 09
07:00 AM PDT
-10:00 AM PDT
Meet AdComs and explore top Master’s programs - MiM, MiF, MSc, MSBA and more. - Application Fee Waivers - Free 1-Week of GMAT Club Tests: - Master's Application Toolkit - Grand Prize Giveaway - Sep 09
10:00 AM PDT
-11:00 AM PDT
Three MBA applications. Three rejections. No interview invites. A year later, Aman was admitted to Cambridge Judge, SMU, and IMD. In this episode of MBA Admit Stories, Aman shares how he rebuilt his MBA application... 
Sep 1008:00 PM PDT
-09:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!
Sep 1507:00 PM EDT
-09:00 PM EST
Elite scores are possible when you enroll in a powerful GMAT course, taught live online + 6 months access to TTP OnDemand video courses included! Class starts Tues/Thurs Sept. 15, 2026 - Nov. 15, 2027, 7:00pm-9:00pm EST
Sep 2108:00 PM EDT
-10:00 PM EDT
Boost your GMAT score in less than one month in a live online class + 6 months access to TTP OnDemand video courses included! Class starts Mon, Tues, Wed, Thur, Fri Sept. 21, 2026 - Oct. 9, 2027, 7:00pm-10:00pm EST
12 Nov 2023, 12:07
Kudos
Bookmarks
Dropdown 1: Z
Dropdown 2: B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
86% (01:54) correct
14%
(02:02)
wrong
based on 1131
sessions
History
Date
Time
Result
Not Attempted Yet
Attachment:
14.jpg [ 33.03 KiB | Viewed 17061 times ]
The graph shows the average (arithmetic mean) mature tree heights of each of Species A-C at each of the Tree Farms W-Z.
Based on the information provided, select from each drop-down menu the option that creates the most accurate statement.
For the 4 tree farms, the sum of the average mature heights of Species A, B, and C is greatest for Tree Farm .
For the 3 species, the standard deviation of the 4 average mature heights given on the graph is greatest for Species .
ShowHide Answer
Official Answer
Dropdown 1: Z
Dropdown 2: B
Trying to understand why the right answer is right?
GMAT Club Tests explanations walk through concepts, shortcuts, and common traps on many questions.
See how →
GMATCoachBen
Expert
Tutor
Joined: 21 Mar 2017
Last visit: 02 Sep 2026
Posts: 462
Given Kudos: 217
Status:Professional GMAT Trainer
Affiliations: GMAT Coach
Location: United States (WA)
GMAT Focus 1: 775 Q87 V90 DI88 (Online) 
GMAT 1: 760 Q50 V44
GMAT 2: 770 Q51 V44
GMAT 3: 770 Q50 V44
GMAT 4: 770 Q50 V45 (Online)
GMAT 5: 780 Q51 V48
Expert reply
Updated on: 03 Jan 2024, 23:06
Originally posted by GMATCoachBen on 21 Nov 2023, 19:08.
Last edited by GMATCoachBen on 03 Jan 2024, 23:06, edited 2 times in total.
Last edited by GMATCoachBen on 03 Jan 2024, 23:06, edited 2 times in total.
Kudos
Bookmarks
Short video solution here (1:53):
A key habit is to minimize calculations; most Data Insights questions don't really require the calculator, if we are quick with our fundamental arithmetic and number sense.
The biggest timesaver here is to use the differences between the values for farm Z and Y to compare them, instead of finding the actual sums. (Shown at 0:42)
A key habit is to minimize calculations; most Data Insights questions don't really require the calculator, if we are quick with our fundamental arithmetic and number sense.
The biggest timesaver here is to use the differences between the values for farm Z and Y to compare them, instead of finding the actual sums. (Shown at 0:42)
Attachments
2023-11-21 18_07_07-.png [ 301.86 KiB | Viewed 16471 times ]
General Discussion
30 Nov 2023, 00:43
Kudos
Bookmarks
Sajjad1994 can you please explain part 2 ?
