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More Lessons for GMAT Math

Math Worksheets

Videos, examples and solutions that will help GMAT students review questions on statistics.

GMAT Math - Statistics

This video covers the statistics problems in the GMAT Math section.

Example: A class of 31 students has recently taken an exam and the average mark was 81. 10 students received a mark of 75, while 8 received a mark of 76. If the remaining students received marks of either 85 or 91, how many students received a score of 85?

The arithmetic mean of the mass of 10 vehicles is 12 tons. The mean weight of the group of vehicles increased by 2.4 tons after a new heavy-duty truck was added to the group.

Approximatelywhat was the mass of the heavy-duty truck?

Is c the median of a, b and c?

(1) b - c = a

(2) c = a

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