Quelpr
4 marksQuartiles and Percentiles

CSEC Additional Mathematics · 2014 · Paper 2 · Question 7(c)(i)

The aptitude scores obtained by 51 applicants for a supervisory job are summarized in the following stem and leaf diagram.

Find the median and quartiles for the data given.

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 7(a)(i)what is the probability that the student is studying both Mathematics and Biology?[3 marks]
  2. 7(a)(ii)Biology only?[2 marks]
  3. 7(b)(i)Copy and complete the sample space diagram below.[1 mark]
  4. 7(b)(ii)a)Find P (S > 9)[2 marks]
  5. 7(b)(ii)b)P (S≤4).[1 mark]
  6. 7(c)(iii)Find the values of a, b and c.[3 marks]
  7. 7(c)(ii)Construct a box-and-whisker plot to illustrate the data given and comment on the distribution of the data.[4 marks]

More practice: the rest of this paper · more Quartiles and Percentiles questions · all CSEC Additional Mathematics past papers