2026 NCHS P2 Q2

2026 NCHS P2 Q2

Secondary 4
8 marks
  1. The cumulative frequency diagram shows the travelling time of 60 adults travelling to work by MRT on Monday.
    1. Use the diagram to estimate
      1. the median travelling time,[1]
      2. the interquartile range of the travelling time,[2]
      3. the 80th percentile of travelling time.[1]
  2. Another 60 adults travelled to work by MRT on Tuesday. The box-and-whisker diagram illustrates the distribution of the time taken.
    Make two comparisons between the travelling times of the adults on Monday and on Tuesday.[2]
  3. In 2025, the total number of MRT trips by commuters is 3.49 millions.
    This represents a 2.29% increase from 2024.
    Calculate the total number of MRT trips in 2024.
    Give your answer in standard form.[2]

Solution:

Solution locked

Sign in to view the step-by-step solution

Similar questions are unavailable for this question.
Answer:(a)(i)(a) \(38\text{ min}\) (b) \(22\text{ min}\) (c) \(49\text{ min}\). (b) Monday: lower median and smaller IQR. (c) \(3.41\times10^6\).

Need help? Join our JC Math tuition classes.

Learn more