Questions Result Points1. Discrete versus continuous variables 2. Interpreting a stem-and-leaf display 3. Interpreting relative frequency histograms 4. Mean, median, and mode: Comparisons 5. Sample standard deviation 6. Chebyshev’s theorem and the empirical rule 7. Box-and-whisker plots 8. Mutually exclusive events: Two events 9. Independent events: Basic 10. Probability of independent events 11. Conditional probability: Basic 12. Tree diagrams for conditional probabilities13. Expectation and variance of a random variable 14. Binomial problems: Mean and standard deviation 15. Central limit theorem: Sample mean 16. Standard normal values: Basic 17.Confidence interval for the population mean: Use of the standard normal18. t distribution19. Determining null and alternative hypotheses 20. Hypothesis test for the population mean: Z test 21.Confidence interval for the difference of population means: Use of the standard normal22. Hypothesis test for the difference of population means: Z test 23. F distribution 24. Linear relationship and the sample correlation coefficient 25. Predictions from the least-squares regression line
Travelling Experience
Can you remember your best experince in another country? Last summer (in 2007), I traveled to the United States for working and spending some time with my friends. I stayed two months in that country. I decided to travel because I wanted to do something different. I was bored about all my daily activities, so […]
