### All GRE Subject Test: Math Resources

## Example Questions

### Example Question #32 : Other Topics

Find the variance of the scores 18, 4, 9, 6, 11, and 20.

**Possible Answers:**

**Correct answer:**

Explanation:

First find the mean of the scores by adding them up and dividing by the number of scores.

Subtract the mean of 11.33 from each of the scores.

Now, square the results.

Now we need the average of these values to get the variance. First, add up these values.

Now divide by 6 which is the number of scores.

### Example Question #1 : Variance

**Possible Answers:**

**Correct answer:**

Explanation:

or

### All GRE Subject Test: Math Resources

Popular Subjects

ISEE Tutors in Phoenix, SSAT Tutors in Miami, Statistics Tutors in Dallas Fort Worth, Calculus Tutors in Seattle, GMAT Tutors in Seattle, Spanish Tutors in Houston, MCAT Tutors in Chicago, Computer Science Tutors in Los Angeles, Computer Science Tutors in Boston, Computer Science Tutors in New York City
Popular Courses & Classes

MCAT Courses & Classes in Dallas Fort Worth, GRE Courses & Classes in Denver, SAT Courses & Classes in Seattle, GMAT Courses & Classes in Philadelphia, GMAT Courses & Classes in Houston, MCAT Courses & Classes in Denver, ISEE Courses & Classes in Dallas Fort Worth, SSAT Courses & Classes in Atlanta, ACT Courses & Classes in San Francisco-Bay Area, SSAT Courses & Classes in Phoenix
Popular Test Prep

LSAT Test Prep in San Francisco-Bay Area, ACT Test Prep in San Francisco-Bay Area, GMAT Test Prep in Seattle, GMAT Test Prep in Washington DC, SAT Test Prep in Dallas Fort Worth, LSAT Test Prep in Houston, GMAT Test Prep in San Francisco-Bay Area, MCAT Test Prep in New York City, SSAT Test Prep in Los Angeles, MCAT Test Prep in San Francisco-Bay Area