All GRE Subject Test: Math Resources
Example Questions
Example Question #1 : Standard Deviation
What is the standard deviation of the numbers 3, 5, 8, 9, and 10?
Possible Answers:
Correct answer:
Explanation:
The first step with standard deviation is to find the average or mean of the numbers. Add 3+5+8+9+10 together to get 35. Divide that by the number of scores, which is 5, to get a mean of 7.
Now, subtract the mean from each of the numbers
Next, square those values
Now find the mean of these squared differences by adding the values and then dividing by the amount of numbers, 5 in this case.
Finally, take the square root of this number to get the standard deviation.
All GRE Subject Test: Math Resources
Popular Subjects
GMAT Tutors in Denver, Statistics Tutors in Seattle, SAT Tutors in Atlanta, Math Tutors in San Diego, SAT Tutors in Dallas Fort Worth, Algebra Tutors in Philadelphia, MCAT Tutors in Boston, Physics Tutors in Los Angeles, Math Tutors in San Francisco-Bay Area, Calculus Tutors in Miami
Popular Courses & Classes
GMAT Courses & Classes in New York City, ISEE Courses & Classes in Houston, Spanish Courses & Classes in Washington DC, MCAT Courses & Classes in Philadelphia, SAT Courses & Classes in Boston, MCAT Courses & Classes in San Diego, ISEE Courses & Classes in Los Angeles, GMAT Courses & Classes in San Diego, GMAT Courses & Classes in Dallas Fort Worth, LSAT Courses & Classes in Washington DC
Popular Test Prep
ISEE Test Prep in Washington DC, GMAT Test Prep in San Diego, ISEE Test Prep in Philadelphia, SAT Test Prep in San Diego, GMAT Test Prep in Boston, ISEE Test Prep in Miami, SSAT Test Prep in Houston, GMAT Test Prep in Philadelphia, LSAT Test Prep in San Francisco-Bay Area, ACT Test Prep in Phoenix