2. JEOPARDY! Data and Statistics

3. 1 Variable Stats Two Way Tables Histogra m Scatterpl ot Corre Vs Cause Mystery $100 $200 $300 $400 $500

4. 1 Var $100 What is the range of the data set obtained by subtracting 4 from each value in the following set? 8, 12, 6, 22, 53, 12, 16, 41 Answer

5. 1 Var $200 The price for six books are given below. If all the prices are reduced by 50%, what is the new median price: $12.75, $14.80, $19.99, $9.95, $16.00, $17.95 Answer

6. 1 Var, $300 Find the IQR for the follow boxplot. Answer

7. 1 Var $400 Find the Mean Absolute Deviation: 7, 8, 12, 3, 6 Answer

8. 1 Var $500 Which measure of central tendency probably gives the LEAST ACCURATE prediction of a "typical" low temperature on a Chicago winter day? Answer

9. 2 way table $100 A survey of 9th and 10th graders was given to determine what their favorite subject was. 72 said Math (50 which were freshmen), 38 said Social Studies (20 which were sophomores), and 40 freshmen and 50 sophomores said PE was their favorite. How many people were surveyed? Answer

10. 2 way table $200 What are the joint relative frequencies? Answer

11. 2 way table $300 What is the probability that a student is a freshman and likes SS? Answer

12. 2 way table $400 What are the marginal frequencies? Answer

13. 2 way table $500 What is the probability that a freshman likes Math? Answer

14. Describe the Histogram, $100 Describe the shape of the following histogram: 6 words Answer

15. Describe the Histogram, $200 Describe the shape of the following histogram: 4 words Answer

16. Describe the Histogram, $300 Describe the shape of the following histogram: Answer

17. Histograms, $400 Answer Describe the shape of the following histogram:

18. Histograms, $500 Describe unusual features: Answer

19. Scatterplots $100 A delivery service company maintains several vehicles. The table summarizes the cost for auto insurance related to the number of vehicles insured. Find the equation of a line of best fit for the data, to estimate of the total cost of insuring eight vehicles. Number of Vehicles Cost 11,700 22,100 32,900 43,000 53,500 64,100

20. Scatterplots $200 An engine is tested for torque output at different revolutions per minute. One equation most closely defines the line of best fit for the data.

21. Scatterplots $300 Identify the type of function that models the data set. Give the equation of the best fit for the data in the table. X123678910 Y 1064347762194 637483371298222

22. Scatterplots $400 Answer

23. Scatterplots $500 Predicted Price = 18.617 + 103.929 Capacity. This is the regression equation for disk space Capacity (in megabytes) versus Price (in dollars) at a local store. What does the slope of 103.929 mean in this context? Answer

24. Corr vs Caus $100 Determine if the following situations represent a positive, negative, or no correlation. a) Number of hours studying for the SAT and your score. b) The distance you drive and the number of stars in the sky. c) The temperature and the length of daylight hours for the day. Answer

25. Corr vs Caus $200 Tell whether the following situations are causation: (yes or no) a) The number of boats on Lake Allatoona and the number of cars on the street. b) The hours you work and the money you make. c) The time spent studying and the A on the test. Answer

26. Corr vs Caus $300 Describe the correlation coefficient. r = -.91023 Answer

27. Corr vs Caus $400 Use the graphing calculator to find the value of r? Is this a good fit? Answer

28. Corr vs Caus $500 Calculate the residuals using the table and line of best fit, y=6.09x+63.93. Answer

29. Mystery, $100 The following box and whisker plot shows data about the number of keys people have on their key ring. What percentage of people had less than 5 keys on their key ring? Answer

30. Mystery, $200 For the data given, find the slope (“a”-value) of the Median-Median line without graphing calculator. Answer Time (in minutes) 45659040901004010075 Test Score 708595659957510090

31. Mystery, $300 Answer In order to get conditional relative frequency, you ____________ the joint frequency by the __________

32. Mystery $400 The numbers of speeding tickets issued per week along two stretches of highway are shown. Compare the data using the mean and MAD. Answer I-70 37, 32, 30, 27, 41, 43 26, 22, 48 I-77 48, 45, 57, 62, 34, 69, 29, 76, 21

33. Mystery $500 The linear model for a local store's Number of Sales people working versus Money earned from Sales is as follows : Y= 8,106 + 91.34x, x is Number of Sales People Working. Does the y-intercept have meaning in this equation? Answer

34. 1 Var $100 Range is 47 Home

35. 1 Var $200 Median is $7.70 Home

36. 1 Var $300 IQR is 20 Home

37. 1 Var $400 Home MAD is 2.24

38. 1 Var $500 What is the Mean because it is greatly affected by 55, which is an outlier. Home

39. 2 way table $100 What is 200 people were surveyed Home

40. 2 way table $200 What is 25%, 9%, 20%(top), 11%, 10%, 25%(bottom) ? Home

41. 2 way table $300 What is 9%? Home

42. 2 way table $400 What is bottom (26, 23, 10, 15) and right (37, 27)? Home

43. 2 way table $500 What is 69.4%? Home

44. Describe the Histogram, $100 Normal Symmetric Uni-Modal Bell shaped No gaps No outliers Home

45. Describe the Histogram, $200 Bi-Modal Symmetric No gaps No outliers Home

46. Describe the Histogram, $300 Skewed left Non-symmetric No gaps No outliers Home

47. Histograms, $400 Skewed left Home

48. Histograms, $500 Home Outlier

49. Scatterplot $100 What is y = 465.7x + 1253 And 8 vehicles cost about $4979 ?

50. Scatterplots $200 What is ?

51. Scatterplots $300

52. Scatterplots $400 Home

53. Scatterplots $500 For every 1 mb increase in capacity, the price increases by $103.929. Home

54. Corr vs Caus $100 What is a)positive b) none c) positive Home

55. Corr vs Caus $200 What is a) No b) Yes c) Yes Home

56. Corr vs Caus $400 What is r= 0.988 Yes (anything close to -1 or 1.) Home

57. Corr vs Caus $300 What is strong and negative correlation? Home

58. Corr vs Caus $500 What is -.927 and -.016? Home

59. Mystery, $100 75% Home

60. Mystery, $200 the slope is.455 Home

61. Mystery, $300 Divide, Marginal Total Home

62. Mystery $400 What is 54.9? Home

63. Mystery $500 No, when no one is working, there should be no sales. This is just a starting point for the data. Home