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Across 1. denoted bt D1,D2,D3,.........,D9 4. denoted by P1,P2,.........,P9 8. is a mean computed with the different scores assigned different weights 10. distribution that is approximately bell-shaped 12. is a graph showed by slices of a pie 15. sample values lie within 2 standard deviation of the mean 18. are midpoints of the classes 23. sample variance s^2 24. are the numbers used to separate classes, but withou the gaps created by class limits 26. is a value that is located very far away from almost all of the other values 27. is a value at the center or middle of a data set 32. are the smallest numbers that can belong to the different classes 33. denoted by Q1,Q2, andQ3 34. = highest value + lowest value/ 2 35. is a variation of values about the mean 38. is a plot of the paired (x,y) data with a horizontal x-axis and a vertical y-axis 40. is the difference between two consecutive lower class limits or two consecutive lower class boundaries 41. summarize or describe the important characteristics of a set of data 42. vertical scale is marked with relative frequencies 43. dividing each class frequency by total of all frequencies 46. no more than 1/k2 of the values are more than k standard deviations away from the mean. 47. is a bar graph for qualitative data, with the bars arranged in order according to frequencies 48. is the process of using statistical tools to investigate data set in order to understand their important charcteristics 49. separating each value into parts; the stem and the leaf 50. difference between the value and the mean 51. data values is plotted as a point along a scale of values 52. is a bar graph in which the horizontal scale represents classes and the vertical scale represents frequencies 53. measure of variation equal to the square of the standard deviation 54. uses line segments connected to points located directly above class midpoint values

Down 2. if the left half of its histogram is roughly a mirror image of its right half 3. middle value 5. ___ or z score 6. are the largest numbers that can belong to the different classes 7. consists of the minimum value; the 1s quartile,Q1; the median, or 2nd quartile;Q2,the 3rd quartile, Q3, maximum value 9. standard score 11. two values occur with the same greatest 13. is number obtained by adding the values and dividing the total by the number of values 14. or a box-and-whisker diagram 16. divide that sum by the number of sample values 17. the mean and median are to the left of the mode 19. an average 20. sample data to make inferences about a population 21. lists classes of values, along with counts 22. value that occurs most frequently 25. highest value - lowest value 28. cumulative frequencies used instead of the individual class frequencies 29. sum of the frequencies for that class and all previous classes 30. the number of original scores that fall into that class 31. same class limits as a frequency table,but relative frequencies are used 36. the mean and median are to the right of the mode 37. the number of values in the data set 39. is a line graph that depicts cumulative frequencies 44. if not symmetric and if it extends more to one side than the other 45. more than two values occur with the same greatest frequency