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5 marksInterpretation of Measures of Central Tendency and Dispersion

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

The standard deviation of the weights of the boys is 5.53 kg.

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.

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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)(ii)Construct ONE box-and-whisker plot for the entire Grade 5 class (boys and girls combined).[4 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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