Two-way tables Quiz
10 questions · easy to harder · Probability · 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.
- 3 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
Two-way table: boys 12 cat 8 dog, girls 10 cat 20 dog; P(dog)Type the answer.
2 Question 2
Two-way table: men 16 yes 4 no, women 12 yes 8 no; P(yes)Type the answer.
3 Question 3
Two-way table: juniors 8 bus 12 car, seniors 6 bus 14 car; P(junior)- A) P(junior) = 1
- B) P(junior) = −12
- C) P(junior) = 12
4 Question 4
Two-way table: boys 9 art 6 music, girls 7 art 8 music; P(boy and art)Type the answer.
5 Question 5
Two-way table: adults 30 tea 10 coffee, children 5 tea 15 coffee; P(child and coffee)- A) P(child and coffee) = −14
- B) P(child and coffee) = 14
- C) P(child and coffee) = 35
6 Question 6
Two-way table: boys 5 yes 15 no, girls 10 yes 10 no; P(girl and yes)Type the answer.
7 Question 7
Two-way table: men 16 yes 4 no, women 12 yes 8 no; P(no given woman)- A) P(no | woman) = −25
- B) P(no | woman) = 15
- C) P(no | woman) = 25
8 Question 8
Two-way table: boys 12 cat 8 dog, girls 10 cat 20 dog; P(girl or dog)Type the answer.
9 Question 9
Two-way table: men 14 walk 6 drive, women 9 walk 11 drive; P(man or walk)Type the answer.
10 Question 10
Two-way table: men 20 left 5 right, women 10 left 15 right; P(woman or right)Type the answer.