Practice Complementary Events - 8.5 | 8. Probability | CBSE 9 AI (Artificial Intelligence)
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Complementary Events

8.5 - Complementary Events

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the probability of not winning a game if the winning probability is 0.4?

💡 Hint: Use the formula P(A') = 1 - P(A)

Question 2 Easy

If the probability of getting heads on a coin flip is 0.5, what is the probability of not getting heads?

💡 Hint: What do you subtract from 1?

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the formula to find the probability of the complement of an event?

💡 Hint: Think about how total probabilities relate to one another.

Question 2

If the probability of an event is 0.2, what is the probability of its complement?

0.2
0.5
0.8

💡 Hint: Remember, probability adds to 1.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A six-sided die is rolled. What is the probability of not rolling a number greater than 4?

💡 Hint: Identify how many numbers are greater than 4.

Challenge 2 Hard

You have a bag with 3 blue, 2 red, and 5 green marbles. What is the probability of not drawing a blue marble?

💡 Hint: Find the total marbles and identify how many are not blue.

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