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4 marksFrequency Tables

CSEC Mathematics · May/June 2016 · Paper 2 · Question 7(a)

Twenty bags of sugar were weighed. The weights, to the nearest kg, are given as a list of numbers: 3, 38, 17, 33, 28, 12, 43, 38, 31, 30, 11, 8, 23, 18, 26, 50, 22, 35, 39, 5. The question asks to complete a frequency table with columns for Weight (kg), Tally, and Number of Bags, for intervals 1-10, 11-20, 21-30, 31-40, 41-50.

Complete the frequency table for the data shown above.

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Other parts of this question

  1. 7(b)(i)For the class interval 21-30, state the upper class boundary.[1 mark]
  2. 7(b)(ii)For the class interval 21-30, state the class width.[1 mark]
  3. 7(b)(iii)For the class interval 21-30, state the class midpoint.[1 mark]
  4. 7(c)On the grid on page 19, using a scale of 2 cm to represent 10 kg on the x-axis, and 1 cm to represent 1 bag on the y-axis, draw a histogram to represent the…[4 marks]

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