Core Maths Stats

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Across
  1. 2. The complete group being studied.
  2. 4. A systematic error that causes results to favour certain outcomes.
  3. 7. The running total of frequencies up to a given value.
  4. 9. Selecting individuals at regular intervals (e.g. every 10th person).
  5. 10. The value below which 75% of the data lie.
  6. 12. The middle value when data are arranged in order.
  7. 15. Frequency divided by class width.
  8. 16. The square root of the variance; measures spread around the mean.
  9. 17. Data collected from a sample or population through questions.
  10. 19. Every possible sample of a given size has an equal chance of being selected.
  11. 20. Data previously collected by someone else.
  12. 23. Can only take specific values, usually whole numbers.
  13. 24. Making predictions beyond the range of observed data.
  14. 25. Uses touching bars to display continuous data grouped into class intervals.
  15. 26. Numerical data representing counts or measurements.
Down
  1. 1. Data collected from every member of the population.
  2. 3. An unusually large or small value.
  3. 5. Making predictions within the range of observed data.
  4. 6. A diagram showing the minimum, lower quartile, median, upper quartile and maximum.
  5. 7. Can take any value within a range.
  6. 8. Measures the spread of the middle 50% of the data.
  7. 11. The value below which 25% of the data lie.
  8. 13. The most frequently occurring value.
  9. 14. Taking a group of observations at regular intervals.
  10. 18. Sum of values divided by the number of values.
  11. 20. A subset of the population used to collect data.
  12. 21. Non-numerical data describing qualities or categories.
  13. 22. Data collected first-hand by the researcher.