It is currently Sun Sep 22, 2019 3:25 pm

 All times are UTC - 5 hours [ DST ]

 Page 1 of 1 [ 2 posts ]
 Print view Previous topic | Next topic
Author Message
 Post subject: GRE Data Analysis (Select One)Posted: Mon May 07, 2012 8:44 pm

Joined: Sun May 30, 2010 3:15 am
Posts: 424

The chart above shows the distribution of letter grades for three groups of students on one test. Point values are assigned to the letter grades so that A = 4 points, B = 3 points, C = 2 points and D = 1 point. Which of the following values is the closest to the average (arithmetic mean) grade of students in the group 3?

A. 2.2
B. 2.4
C. 2.9
D. 3.1
E. 3.6

(B) There are 4 + 7 + 9 + 2 = 22 students in the group 3.

The grade distribution in the group 3 was:

Therefore, the sum of the grade points for the group 3 is:
(4 × 1) + (7 × 2) + (9 × 3) + (2 × 4) = 4 + 14 + 27 + 8 = 53.

We can find the average grade in gr the group 3 by dividing this sum by the number of students in the group 3:
Average for the group 3 = 53/22.
Performing the required division, we see that 2.4 is the closest answer choice.

The correct answer is choice (B).
----------
I did not understand the question, could you please elaborate. Which groups are we talking about?

Top

 Post subject: Re: t.4, qt.6: data analysis, arithmetic meanPosted: Mon May 07, 2012 8:46 pm

Joined: Sun May 30, 2010 2:23 am
Posts: 498

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 2 posts ]

 All times are UTC - 5 hours [ DST ]

#### Who is online

Users browsing this forum: No registered users and 2 guests

 You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forumYou cannot post attachments in this forum

Search for:
 Jump to:  Select a forum ------------------ GMAT    GMAT: Quantitative Section (Math)    GMAT: Verbal Section    GMAT: Integrated Reasoning    GMAT: General Questions GRE    GRE: Quantitative Reasoning (Math)    GRE: Verbal Reasoning    GRE: General Questions General questions    Other questions