Stats/Methods I

1. Stats/Methods I JEOPARDY

2. Jeopardy Correlation Regression Z-Scores Probability Surprise $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500

3. Correlation--$100 • When two variables tend to move in the same direction • answer

4. Correlation--$200 • A perfect correlation is indicated by a correlation coefficient of • answer

5. Correlation--$300 • On a scatterplot, a negative correlation looks like this • answer

6. Correlation--$400 • Compute this to determine whether a consistent relationship exists between two rank-order measures. • answer

7. Correlation--$500 • Conceptually, the Pearson correlation coefficient is computed by dividing _________ by _________. • answer

8. Regression--$100 • When drawing the regression line, what is the minimum number of points you must compute and plot? • answer

9. Regression--$200 • In the regression equation, “a” stands for __________. • answer

10. Regression--$300 • In the regression equation, a negative _____ means that Y decreases when X increases. • answer

11. Regression--$400 • In general, a linear relationship between x and y can be expressed by this equation • answer

12. Regression--$500 • The variable you will use to make predictions goes on the __axis and the variable you’re interested in predicting goes on the __axis. • answer

13. Z-Scores--$100 • The z-score that would indicate a score located 2 standard deviation units below the mean. • answer

14. Z-Scores--$200 • If a person earns a score that is equal to the population mean, that person’s z-score will be ___. • answer

15. Z-Scores--$300 • The distribution of z-scores always has a standard deviation of ___. • answer

16. Z-Scores--$400 • The two pieces of population information you need in order to transform a raw score into a z-score. • answer

17. Z-Scores--$500 • If the original distribution is negatively skewed, the shape of the distribution after a z-score transformation will be ___________. • answer

18. Probability--$100 • In general, the probability of A is computed by taking __________ and dividing by ________. • answer

19. Probability--$200 • For the definition of probability to be accurate, the outcomes must be obtained by a process called ___________. • answer

20. Probability--$300 • Provides a complete listing of z-scores and their corresponding proportions of the normal distribution. • answer

21. Probability--$400 • The _____ always corresponds to the larger part of the distribution, whether it is on the right-hand side or the left-hand side of the distribution. • answer

22. Probability--$500 • When finding the ______ for a particular score, we are always looking for the proportion of the distribution to the _____ of the x value. • answer

23. Surprise--$100 • In a binomial situation, if p = .75, then q = ___. • answer

24. Surprise--$200 • Another name for a non-directional test. • answer

25. Surprise--$300 • Gives the proportion of variability in y that can be explained by the variability in x. • answer

26. Surprise--$400 • The binomial distribution is always a _____ histogram,while the normal distribution is a ________, smooth curve. • answer

27. Surprise--$500 • When ___ and ___ are both at least 10, the binomial distribution is closely approximated by a normal distribution. • answer

28. Correlation--$100 • A: What is a positive correlation? • Back to board

29. Correlation--$200 • A: What is 1 (positive & negative)? • Back to board

30. Correlation--$300 • A: What is an envelope moving down from left to right? • Back to board

31. Correlation--$400 • A: What is the Spearman correlation? • Back to board

32. Correlation--$500 • A: What is • Degree to which x & Y vary together • Degree to which x and y vary separately • Back to board

33. Regression--$100 • A: What is 2? • Back to board

34. Regression--$200 • A: What is the y-intercept? • Back to board

35. Regression--$300 • A: What is slope? • Back to board

36. Regression--$400 • A: What is • y predicted=bx+a ? • Back to board

37. Regression--$500 • A: What is x and y (in that order)? • Back to board

38. Z-Scores--$100 • A: What is z = -2.0 ? • Back to board

39. Z-Scores--$200 • A: What is z = 0.00 ? • Back to board

40. Z-Scores--$300 • A: What is 1? • Back to board

41. Z-Scores--$400 • A: What are the population mean and the population standard deviation? • Back to board

42. Z-Scores--$500 • A: What is the same—negatively skewed? • Back to board

43. Probability--$100 • A: What is • # of outcomes classified as A • total # of possible outcomes • Back to board

44. Probability--$200 • A: What is random sampling? • Back to board

45. Probability--$300 • A: What is the unit normal table? • Back to board

46. Probability--$400 • A: What is the body? • Back to board

47. Probability--$500 • A: What is the percentile rank and left? • Back to board

48. Surprise--$100 • A: What is .25? • Back to board

49. Surprise--$200 • A: What is a two-tailed test? • Back to board

50. Surprise--$300 • A: What is the coefficient of determination (r2)? • Back to board