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Statistics Chapter 9. Day 1. Unusual Episode. MS133 Final Exam Scores. 79 86 79 65 78 91 78 94 88 75 71 53 95 96 79 62 79 67 64 77 69 58 74 69 78 78 91 89 49 68 63 77 86 84 77. Line Plot or Dot Plot. Stem and Leaf. Stem and Leaf. Ordered Stem and Leaf.

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Statistics Chapter 9


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    1. StatisticsChapter 9

    2. Day 1

    3. Unusual Episode

    4. MS133 Final Exam Scores 79 86 79 65 78 91 78 94 88 75 71 53 95 96 79 62 79 67 64 77 69 58 74 69 78 78 91 89 49 68 63 77 86 84 77

    5. Line Plot or Dot Plot

    6. Stem and Leaf

    7. Stem and Leaf

    8. Ordered Stem and Leaf

    9. Frequency Table

    10. Frequency Table

    11. Bar Graph

    12. Make a Pie Chart

    13. 5 A’s out of how many grades total?

    14. 5 A’s out of how many total grades? 35 • What percent of the class made an A?

    15. 5 A’s out of how many total grades? 35 • What percent of the class made an A? 5/35 ≈ 0.14 ≈14% • What percent of the pie should represent the A’s?

    16. 5 A’s out of how many total grades? 35 • What percent of the class made an A? 5/35 ≈ 0.14 ≈14% • What percent of the pie should represent the A’s? 14% • How many degrees in the whole pie?

    17. 5 A’s out of how many total grades? 35 • What percent of the class made an A? 5/35 ≈ 0.14 ≈14% • What percent of the pie should represent the A’s? 14% • How many degrees in the whole pie? 360°

    18. 5 A’s out of how many total grades? 35 • What percent of the class made an A? 5/35 ≈ 0.14 ≈14% • What percent of the pie should represent the A’s? 14% • How many degrees in the whole pie? 360° • 14% of 360° is how many degrees?

    19. 5 A’s out of how many total grades? 35 • What percent of the class made an A? 5/35 ≈ 0.14 ≈14% • What percent of the pie should represent the A’s? 14% • How many degrees in the whole pie? 360° • 14% of 360° is how many degrees? .14 x 360° ≈ 51°

    20. 5 B’s out of 35 grades total ≈ 14% ≈ 51°

    21. 14 C’s out of 35 grades

    22. 14 C’s out of 35 grades • 14/35 = .4 = 40% • .4 x 360° = 144°

    23. 8 D’s out of 35 grades total

    24. 8 D’s out of 35 grades • 8/35 ≈ .23 ≈ 23% (to the nearest percent) (keep the entire quotient in the calculator) • x 360° ≈ 82°

    25. 3 F’s out of 35 total

    26. 3 F’s out of 35 grades total • 3/35 ≈ .09 ≈ 9% (to the nearest percent) (keep the entire quotient in the calculator) • x 360° ≈ 31° • Check the remaining angle to make sure it is 31°

    27. Make a Pie Chart • Gross income: $10,895,000 • Labor: $5,120,650 • Materials: $4,031,150 • New Equipment: $326,850 • Plant Maintenance: $544,750 • Profit: $871,600

    28. Labor: $5,120,650 = 47% 169° 10,895,000 • Materials: $4,031,150 = 37% 133° 10,895,000 • New Equipment: $326,850 = 3% 11° 10,895,000 • Plant Maintenance: $544,750 = 5% 18° 10,895,000 • Profit : $871,600 = 8% 29° 10,895,000

    29. Histogram • Table 9.2 Page 527

    30. Eisenhower High School Boys Heights

    31. EHS Boys’ Heights

    32. EHS Boys’ Heights

    33. Eisenhower High School Boys Heights

    34. EHS Boys’ Heights

    35. Day 2

    36. Measures of Central Tendency Lab Print your first name below.

    37. Getting Mean with Tiles • Use your colored tiles to build a column 9 tiles high and another column 15 tiles high. Use a different color for each column.

    38. Getting Mean with Tiles • Use your colored tiles to build a column 9 tiles high and another column 15 tiles high. Use a different color for each column. • Move the tiles one at a time from one column to another “evening out” to create 2 columns the same height. • What is the new (average) height?