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11 marksData Analysis

CAPE Applied Mathematics Unit 1 · 2017 · Paper 2 · Question 2(b)(iv)

A grouped frequency table displays the number of days that 100 employees were late for work in the last year.

Showing your method clearly, determine the mean number of days that the employees were late, the standard deviation, the median class, and the median number of days employees were late.

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Other parts of this question

  1. 2(a)(i)Using groups of 10 and starting at 20, construct a stem-and-leaf diagram to show the data.[4 marks]
  2. 2(a)(ii)Use the stem-and-leaf diagram to determine the mode, median, interquartile range, and the number of students who got 60 marks or more.[6 marks]
  3. 2(b)(i)State ONE disadvantage of displaying the data in this form.[1 mark]
  4. 2(b)(ii)State the boundaries of the SECOND class.[1 mark]
  5. 2(b)(iii)Calculate the frequency density of the FIFTH class.[2 marks]

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