Probability Distributions MCQ Test: Probability Distributions MCQs - Practice Questions
1. Which distribution is used to test whether there is a significant difference between the means of three or more independent groups?
2. What is the primary purpose of regression analysis?
3. What does the term 'p-value' represent in hypothesis testing?
4. In statistics, what is the kurtosis of a distribution?
5. What is the primary use of a t-distribution in statistical analysis?
6. What is the probability of an event with a probability of 0.5 occurring?
7. What is the formula for calculating the standard deviation of a sample?
8. What is the purpose of the chi-square goodness-of-fit test?
9. In a probability distribution, what is the mean?
10. What is the sum of probabilities in a probability distribution?
11. In a normal distribution, what percentage of data falls within one standard deviation of the mean?
12. Which of the following is a continuous probability distribution?
13. What is the range of possible values in a probability distribution called?
14. In a probability distribution, what does the area under the curve represent?
15. In a probability distribution, what is the variance?
16. Which distribution is commonly used in hypothesis testing for comparing two independent samples?
17. In a chi-square test, what does the chi-square statistic measure?
18. What is the term for the values a random variable can take and the corresponding probabilities of those values?
19. What is the difference between Type I and Type II errors in hypothesis testing?
20. Which of the following is a characteristic of a normal distribution?