SAT Math · Problem-Solving and Data Analysis
One-variable data: distributions and measures of center and spread practice questions
Each free question on this page comes with its answer and a full explanation, and each one is marked easy, medium or hard.
- Question 18 · mediumThe mean of 9 numbers is 42. A 10th number is added to the list, and the mean of all 10 numbers becomes 44. What is the value of…
- Question 40 · mediumA data set consists of the values 12, 15, 18, 22, and 25. If the values 1 and 100 are added to the data set, what is the median…
- Question 219 · mediumThe mean of 6 numbers is 40. If the number 10 is removed from the list, what is the mean of the remaining 5 numbers?
- Question 220 · mediumA data set has a range of 25. If every value in the data set is multiplied by 3, what is the range of the new data set?
- Question 221 · mediumA data set has a standard deviation of 4. If every value in the data set is multiplied by 3, what is the standard deviation of…
- Question 239 · mediumClass A has a mean test score of 78 with a standard deviation of 5. Class B has a mean test score of 78 with a standard…
- Question 240 · mediumA data set of 9 employee salaries has a median of $52,000. If the highest salary in the data set is replaced with a much larger…
- Question 316 · mediumA data set has a standard deviation of 6. If a constant value of 10 is added to every value in the data set, what is the…
- Question 317 · mediumA histogram shows that 12 students scored between 70 and 80 on a test, and 8 students scored between 80 and 90. Based only on…