Comparing boys and girls test scores

Comparing boys and girls test scores

Secondary 2
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.
  2. Find the boys’ median.
  3. Which group performed better by median?
  4. One more boy is added, and the boys’ mean becomes 65. Find his score.

Solution:

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

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