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4 marksDiagrammatic Representation of Numerical Data

CSEC Additional Mathematics · 2019 · Paper 2 · Question 7(a)(ii)

The weights, in kg, of students in a Grade 5 class are displayed in a stem and leaf diagram. The key states 'Boys 8|2 means 28 kg' and 'Girls 2|8 means 28 kg'.

Construct ONE box-and-whisker plot for the entire Grade 5 class (boys and girls combined).

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Other parts of this question

  1. 7(a)(i)State the number of students in the class.[1 mark]
  2. 7(a)(iii)Determine the standard deviation of the weights of the girls. Provide an interpretation of your answer for the girls compared to that given for the boys.[5 marks]
  3. 7(a)(iv)Determine the number of students above the 20th percentile for this class.[2 marks]
  4. 7(b)(i)Determine the probability that the apples chosen contain one of EACH colour.[4 marks]
  5. 7(b)(ii)Determine the probability that the apples chosen are ALL of the same colour.[4 marks]

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