Comparing boys and girls test scores

Comparing boys and girls test scores

Secondary 2
6 marks
TGM Original Questions

The back-to-back stem-and-leaf diagram shows the scores of 15 boys and 15 girls.

  1. Find the mode of all 30 scores.[1]
  2. Find the boys’ median.[1]
  3. Which group performed better by median?[2]
  4. One more boy is added, and the boys’ mean becomes 65. Find his score.[2]

Solution:

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Answer:(a) \(68\) (b) \(65\) (c) girls (d) \(69\).

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