GRE · Quantitative Reasoning

Data analysis

7 practice questions, each with the answer and an explanation.

Practise Data analysis now

Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 7 questions

The average of $4$ numbers is $10$ . When a new number, $20$ , is added, what is the new average?
Five positive integers, not necessarily distinct, have a mean of $12$ and a median of $10$ . What is the greatest possible value of the largest of the five integers?
A data set has a standard deviation of $4$ . Every value is multiplied by $3$ , and then $5$ is added to each result. What is the standard deviation of the new data set?
Two fair six-sided dice are rolled. Given that the dice do not show the same number, what is the probability that the sum is a prime number?
How many integers from $100$ to $999$ , inclusive, have digits that add up to $9$ ?
An urn contains $5$ red, $4$ blue, and $3$ green marbles. Three marbles are drawn at random without replacement. What is the probability that exactly two of the three marbles have the same color?
The average of $8$ numbers is $25$ . When the largest number is removed, the average of the remaining $7$ numbers is $22$ . When the smallest number is also removed, the average of the remaining $6$ num…

Keep practising

More GRE topics

All GRE practice →

Data analysis in other exams

Ready for the full GRE test?

Take a mock test GRE hub

Data analysis practice questions for GRE | GetMyMockTest