Don’t lose your progress!

We cover every section of the GMAT with in-depth lessons, 5000+ practice questions and realistic practice tests.

Up to 90+ points GMAT score improvement guarantee

The best guarantee you’ll find

Our Premium and Ultimate plans guarantee up to 90+ points score increase or your money back.

Master each section of the test

Comprehensive GMAT prep

We cover every section of the GMAT with in-depth lessons, 5000+ practice questions and realistic practice tests.

Schedule-free studying

Learn on the go

Study whenever and wherever you want with our iOS and Android mobile apps.

The most effective way to study

Personalized GMAT prep, just for you!

Adaptive learning technology focuses on your academic weaknesses.

Statistics: Mode

| Score | Number of students | |-------|--------------------| | 20 | 4 | | 21 | 2 | | 22 | 5 | | 23 | 1 | The table shows scores of twelve students in a science class. What is the mode of the scores listed?
Incorrect. [[snippet]] This is a trap answer choice. The number 5 is indeed the greatest __number of students__ who scored a certain score, but it is not a score. Since the question asked for the mode of the scores, the result has to be one of the scores (i.e., the numbers in the left column).
Incorrect. [[snippet]]
Correct. [[snippet]] The table is shorthand for the list of scores: >$$\{20, \ 20, \ 20, \ 20, \ 21, \ 21, \ 22, \ 22, \ 22, \ 22, \ 22, \ 23\}$$. The number 22 occurs the most often in the list of scores given in the question. Therefore, 22 is the mode.
Incorrect. [[snippet]] There are four 20s in the list, but another score occurs more often.
Incorrect. [[snippet]] There is only one 23 in the list. Other scores occur more often.
4
5
20
22
23