Leaving Cert Ireland · Mathematics

Data Analysis

3 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 3 questions

  1. Find the variance of the data 5, 8, 11, 5, 5, 2 (treat them as a whole population).
  2. Find the variance of the data 8, 11, 12, 11, 6, 4, 2, 10 (treat them as a whole population).
  3. Find the variance of the data 4, 8, 1, 10, 11, 2, 1, 11 (treat them as a whole population).

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