Probability with and 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.
- 0 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
Flip a coin and roll a die, P(heads and 6)Type the answer.
2 Question 2
Roll a die twice, P(two 6s)Type the answer.
3 Question 3
Roll a die twice, P(6 then 1)Type the answer.
4 Question 4
A bag has 2 red and 3 blue marbles, two are picked with replacement, P(red then blue)Type the answer.
5 Question 5
A bag has 3 red and 5 blue marbles, two are picked without replacement, P(both red)Type the answer.
6 Question 6
Roll a die twice, P(even then odd)Type the answer.
7 Question 7
Flip a coin and roll a die, P(tails and less than 3)Type the answer.
8 Question 8
A bag has 6 red and 4 blue marbles, two are picked without replacement, P(both blue)Type the answer.
9 Question 9
A bag has 3 red and 7 blue marbles, two are picked without replacement, P(blue then red)Type the answer.
10 Question 10
A bag has 5 white and 5 black marbles, two are picked without replacement, P(both black)Type the answer.