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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Calculate the mean for n = 8 and p = 0.3.
💡 Hint: Use the formula for mean.
Question 2
Easy
What does the variance represent in a binomial distribution?
💡 Hint: Think about how outcomes can vary.
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 is the formula for the mean in a binomial distribution?
- n × (1-p)
- n × p
- p × (1-p)
💡 Hint: Think about the basic properties of expected values.
Question 2
True or False: Variance is the same as standard deviation.
- True
- False
💡 Hint: Remember the relationship between variance and standard deviation.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You are conducting an experiment with 12 trials where the probability of success is 0.25. Calculate the mean, variance, and standard deviation of your distribution.
💡 Hint: Use the formulas systematically for each calculation.
Question 2
In a study where 50 respondents answer a true/false question with a 70% success rate, determine the expected number of 'true' answers, variance, and standard deviation.
💡 Hint: Break the problem down: find each part step by step using the formulas we've covered.
Challenge and get performance evaluation