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 Total GMAT Math Jeff's complete Quant guide, on sale now!
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1,800 Practice Math Questions

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GMAT Official Guide, with IR
OG Math | OG Verbal
OG12 & Quant Rev solutions!

GMAT Question of the Day
Beginner's Guide to the GMAT
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## GMAT Question of the Day

###### February 12, 2014

Every weekday, GMAT Hacks publishes a realistic GMAT practice question. In general, you'll see Quant problems on Monday, Wednesday, and Friday, and Verbal questions on Tuesday and Thursday. You'll always be able to find them at www.gmathacks.com/daily.

Give today's question a try, and check your answer. When you're done, be sure to subscribe so that you can keep practicing every day!

Today's Practice GMAT Question:

 A zoologist recorded the number of cubs under the care of each of 12 adult female lions. What was the standard deviation of the numbers of cubs under the care of the 12 adult female lions? (1) Each of the 12 adult female lions had either 2 or 3 cubs under her care. (2) 8 of the 12 adult female lions had the same number of cubs under her care. (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.

Click to show answer (opens in new window)

Need more work in this area? Check out the Statistics and Sets set of (100) practice problems.There is also a full chapter covering Statistics in Total GMAT Math. It includes additional practice problems, as well.

If you don't already subscribe to the GMAT Question of the Day, start now--it's easy! A new question is published every weekday. You can sign up for all the questions, or just Verbal or Quantitative questions. Click here to subscribe!

About the author: Jeff Sackmann has written many GMAT preparation books, including the popular Total GMAT Math, Total GMAT Verbal, and GMAT 111. He has also created explanations for problems in The Official Guide, as well as 1,800 practice GMAT math questions.

 Total GMAT Math The comprehensive guide to the GMAT Quant section. It's "far and away the best study material available," including over 300 realistic practice questions and more than 500 exercises! Click to read more.