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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the probability of getting exactly 2 heads in 4 flips of a fair coin?
💡 Hint: Remember to use combinations.
Question 2
Easy
With 5 tosses of a fair die, what is the probability of rolling a four exactly once?
💡 Hint: Think about the applicable formula.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What formula is used for binomial probability?
💡 Hint: Think about the components of success and trials.
Question 2
In a binomial distribution, if n=10 and k=5, does that mean there are exactly five successes?
- True
- False
💡 Hint: Consider the meaning of 'k' in our context.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
In a binomial experiment where p = 0.3 and n = 15, what is the probability that exactly 6 trials are successful?
💡 Hint: Be careful with the combinations; those can be trickier!
Question 2
What is the expected number of successes in 20 trials with a success probability of 0.2?
💡 Hint: Think about how to determine expectation from trials and success rates.
Challenge and get performance evaluation