Data in a Table

Find the class width.

• c = 5

• c = 6

• c = 7

• c = 8

Find the class limits and frequency.

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Decide on the number of class using Sturges' Rule.

• k ≈ 5

• k ≈ 6

• k ≈ 7

• k ≈ 8

The following are heights of male fourth year students in a school. Prepare a frequency table for the set of data. Which of these is true?

• Heights. Frequency

  1.72 1

  1.69 1

  1.68 1

  1.66 1

  1.65 3

  1.64 2

  1.63 4

  1.62 4

  1.61 5

  1.60 1

  1.59 3

  1.58 4

  1.57 3

  1.56 1

  1.55 1

  1.51 1

  1.49 1

  1.44 1

  1.38 1

  Total 40

• Heights frequency

  1.72 3

  1.69. 2

  1.68. 2

  1.66. 1

  1.65. 2

  1.64. 2

  1.63. 3

  1.62. 2

  1.61. 1

  1.60. 1

  1.59. 2

  1.58. 4

  1.57. 3

  1.56. 2

  1.55. 3

  1.51. 2

  1.49. 1

  1.44. 2

  1.38. 1

  1.36. 3

  Total. 40

How many students took the Math Test in the given data?

• 6

• 12

• 35

• 47

What is the range of the given data?

• 6

• 12

• 35

• 47

What is the class width of the given data?

• 5

• 6

• 12

• 47

What class has the highest frequency?

• 12 - 17

• 18 - 23

• 24 - 29

• 42 - 47

What is the frequency of the class 36 - 41?

• 5

• 6

• 36

• 41

Which process is used in grouping data into categories showing the number of observations in each of the non-overlapping classes?

• Frequency Distribution Table

• Graphical Method

• Textual Method

• Registration Method