Test scores as a stem-and-leaf diagram

Test scores as a stem-and-leaf diagram

Secondary 2
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.
  2. Find the mode.
  3. Find the percentage scoring from 30 to 40 inclusive.
  4. A distinction is awarded above 39; find the fraction receiving a distinction.

Solution:

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Answer:(a) rows as stated, key \(3|1=31\); (b) \(31\); (c) \(55\%\); (d) \(3/10\).

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