Cumulative frequency 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
Cumulative frequency: 0-10: 4, 10-20: 9, 20-30: 15, 30-40: 8, 40-50: 4, find the median- A) −247
- B) 24.7
- C) −24.7
- D) −2.47
2 Question 2
Cumulative frequency: 0-5: 3, 5-10: 7, 10-15: 6, 15-20: 4, find the medianType the answer.
3 Question 3
Cumulative frequency: 10-20: 4, 20-30: 8, 30-40: 12, 40-50: 8, 50-60: 8, find the median- A) 367
- B) 36.7
- C) −36.7
- D) 3.67
4 Question 4
Cumulative frequency: 0-4: 2, 4-8: 6, 8-12: 8, 12-16: 4, find the medianType the answer.
5 Question 5
Cumulative frequency: 0-10: 4, 10-20: 9, 20-30: 15, 30-40: 8, 40-50: 4, find the upper quartile- A) 32.5
- B) −32.5
- C) −3.25
- D) −325
6 Question 6
Cumulative frequency: 0-20: 8, 20-40: 16, 40-60: 12, 60-80: 4, find the interquartile rangeType the answer.
7 Question 7
Cumulative frequency: 100-110: 6, 110-120: 14, 120-130: 12, 130-140: 8, find the medianType the answer.
8 Question 8
Cumulative frequency: 0-30: 12, 30-60: 28, 60-90: 24, 90-120: 16, find the interquartile rangeType the answer.
9 Question 9
Cumulative frequency: 0-2: 6, 2-4: 14, 4-6: 22, 6-8: 10, 8-10: 8, find the median- A) 0.49
- B) −4.9
- C) 4.9
- D) 49
10 Question 10
Cumulative frequency: 20-40: 10, 40-60: 30, 60-80: 25, 80-100: 15, find the lower quartileType the answer.