Frequency tables Quiz
10 questions · easy to harder · Foundations · score and step-by-step answers
How it works
- 10 questions, about 20 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 5 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. No calculator: work it out on paper.
- 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
Find the mean of the frequency table x: 1, 2, 3; f: 2, 3, 5.- A) mean = 2
- B) mean = 0.23
- C) mean = 10
- D) mean = 2.3
2 Question 2
Find the mean of the frequency table x: 2, 4, 6; f: 1, 2, 1.Type the answer.
3 Question 3
Find the mean of the frequency table x: 10, 20, 30; f: 3, 4, 3.- A) mean = 200
- B) mean = 20
- C) mean = 10
4 Question 4
Find the mean of the frequency table x: 1, 2, 3, 4; f: 4, 3, 2, 1.Type the answer.
5 Question 5
Find the mean of the frequency table x: 0, 1, 2, 3; f: 5, 8, 4, 3.- A) mean ≈ 1.3
- B) mean ≈ 20
- C) mean ≈ 1.5
- D) mean ≈ 13
6 Question 6
Find the mean of the frequency table x: 5, 6, 7, 8; f: 2, 6, 7, 5.Type the answer.
7 Question 7
Find the mean of the frequency table x: 2, 3, 4, 5, 6; f: 1, 4, 6, 5, 4.- A) mean ≈ 4
- B) mean ≈ 44
- C) mean ≈ 20
- D) mean ≈ 4.4
8 Question 8
Find the mean of the frequency table x: 1, 2, 3, 4, 5; f: 2, 5, 9, 6, 3.Type the answer.
9 Question 9
Find the mean of the frequency table x: 1.5, 2.5, 3.5; f: 2, 5, 3.- A) mean = 2.5
- B) mean = 2.6
- C) mean = 10
- D) mean = 0.26
10 Question 10
Find the mean of the frequency table x: 0, 1, 2, 3; f: 7, 9, 5, 3.Type the answer.