Percentiles Quiz
10 questions · easy to harder · Statistics · score and step-by-step answers
How it works
- 10 questions, about 30 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 4 questions have choices. For the others you type the answer: a number like 4, −2, 7/2 or 3.5, or for example x = 4, x = 2 or x = −3, (3, 5), 2x + 1. Use ^ for powers (x^2) and sqrt for √. Any form with the same value counts (7/2 = 3.5).
- One question at a time: Back, Next, Mark for review and the question list at the bottom. A calculator is on the screen.
- At the end: your percent and grade, every question right or wrong, why a wrong choice is wrong, and its step-by-step solution. Then practise the lesson with new questions.
Your answers and results are kept in this browser only, so you can close the page and come back.
1 Question 1
Calculate 50th percentile of 3, 5, 6, 8, 9, 12, 15Type the answer.
2 Question 2
Calculate 75th percentile of 10, 12, 15, 16, 18, 20, 23Type the answer.
3 Question 3
Calculate Q3 of 21, 24, 25, 28, 30, 33, 35- A) Q3 = 4
- B) Q3 = 33
- C) Q3 = 2
- D) Q3 = 30
4 Question 4
Percentile of 9 in 2, 4, 5, 7, 9, 11, 12, 14, 15, 18Type the answer.
5 Question 5
Calculate Q1 of 12, 5, 8, 20, 15, 9, 11, 7, 14- A) Q1 = 5
- B) Q1 = 7.5
- C) Q1 = 2.5
- D) Q1 = 7
6 Question 6
Calculate 40th percentile of 31, 25, 28, 40, 36, 22, 33, 30, 27Type the answer.
7 Question 7
Percentile of 58 in 52, 55, 57, 58, 62, 64, 67, 58, 69, 71, 40, 45- A) percentile = 2
- B) percentile = 5
- C) percentile = 50
8 Question 8
Calculate Q1 of 3, 7, 8, 5, 12, 14, 21, 13, 18, 6, 9Type the answer.
9 Question 9
35th percentile of 14, 17, 19, 20, 22, 25, 26, 28, 30, 33, 35, 38- A) P35 = 6.5
- B) P35 = 20
- C) P35 = 21
- D) P35 = 4.55
10 Question 10
Percentile of 30 in 30, 25, 18, 30, 40, 35, 22, 30, 28, 45, 33, 20Type the answer.