Test scores as a stem-and-leaf diagram

Test scores as a stem-and-leaf diagram

Secondary 2
6 marks
TGM Original Questions

The marks of 20 students are 23, 27, 31, 34, 38, 42, 45, 29, 31, 36, 40, 33, 37, 44, 27, 35, 39, 41, 46, 31.

  1. Draw a stem-and-leaf diagram.[3]
  2. Find the mode.[1]
  3. Find the percentage scoring from 30 to 40 inclusive.[1]
  4. A distinction is awarded above 39; find the fraction receiving a distinction.[1]

Solution:

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Answer:(a) See worked solution, key \(3|1=31\) (b) \(31\) (c) \(55\%\) (d) \(\frac{3}{10}\).

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