Kuwait University Aptitude Tests (KUAT) · Mathematics and Quantitative Reasoning

Data Handling

17 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 17 questions

  1. Find the mean of the numbers 10, 9, 13, 16, 22.
  2. Find the range of 3, 5, 12, 15, 18.
  3. Find the mode of 15, 3, 24, 3, 20, 3.
  4. Find the mode of 21, 14, 7, 7, 14, 7.
  5. Find the median of 10, 6, 5, 8, 19.
  6. A bag has 3 red balls and 4 white balls. Two balls are drawn one after another without replacement. Find the probability that both are red.
  7. A bag has 5 red balls and 6 white balls. A ball is drawn, replaced, and then a second ball is drawn. Find the probability that the two balls are of different colours.
  8. A bag has 4 red balls and 6 white balls. Two balls are drawn one after another without replacement. Find the probability that both are red.
  9. The mean of five numbers is 12. Four of the numbers are 10, 14, 8 and 15. What is the fifth number?
  10. Find the median of the data set 3, 8, 5, 12, 7, 13.
  11. In a quiz, 2 students scored 1, 5 scored 2, 2 scored 3 and 1 scored 4. What is the mean score?
  12. Two fair coins are tossed. What is the probability of getting exactly one head?
  13. The mean of six numbers is 15. The number 25 is removed. What is the mean of the remaining five numbers?
  14. One class of 20 students has a mean mark of 70 and another class of 30 students has a mean mark of 80. What is the mean mark of all 50 students?
  15. A fair six-sided die is rolled. What is the probability that the score is a prime number?
  16. The probability that it rains in Kuwait City on a certain day is 0.35. What is the probability that it does not rain that day?
  17. The ages of five students are 18, 19, 19, 20 and . The mean age is 19.4. Find .

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