SAT MATH • ANSWER CHECK
Measures of Center Spread & Data Sets
Complete the practice first, then open each answer to check your work. These answers match the revised September 2026 worksheets.
For a wrong answer, identify the cause: concept, algebra, arithmetic, interpretation, calculator choice, or timing. Equivalent exact numerical forms are accepted for these practice exercises.
Question 1
Answer: 14
Question 2
Answer: 20
Question 3
Answer: C
C. 12
Question 4
Answer: 17
Question 5
Answer: C
C. 49.6
Question 6
Answer: 26
Question 7
Answer: B
B. Median
Question 8
Answer: B
B. The mean and median increase by 7, while the standard deviation stays the same.
Question 9
Answer: C
C. It is multiplied by 2.5.
Question 10
Answer: B
B. The groups have the same mean, but Group B has the larger standard deviation.
Question 11
Answer: 5.4
Question 12
Answer: B
B. 20-24 minutes
Question 13
Answer: 4.7
Question 14
Answer: B
B. Median
Question 15
Answer: A
A. Studio A has a greater median and a greater interquartile range.
Question 16
Answer: 28
Question 17
Answer: 20
Question 18
Answer: C
C. 75.6