2026 DSS P1 Q8

2026 DSS P1 Q8

Secondary 4
5 marks

The table represents the monthly salary of workers in a company.

Monthly salary (\$)350040005000600030000
Number of workers4\(x\)1231
  1. The monthly mean salary of the workers is \$5680. Show that \(x=5\).[3]
  2. Find the median monthly salary of the workers.[1]
  3. Explain whether the mean or the median is the more appropriate measure of central tendency of the workers’ monthly salaries.[1]

Solution:

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Answer:(a) \(x=5\). (b) \$5000. (c) Median; the high outlier raises the mean.

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