Handling data 2

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Across
  1. 3. Describes how similar or varied the set of values are. (6)
  2. 6. Data that can take any value in a given range, usually collected by measuring. (10,4)
  3. 9. A graph that shows how a measurement changes with time. (4,6,5)
  4. 11. A measure of how strongly the points on a scatter graph appear to be related. (11)
  5. 13. Data that can only take exact values, usually collected by counting. (8,4)
  6. 15. A graph that shows how two sets of numerical data are related. (7,5)
  7. 17. The most commonly occurring class in a set of grouped data. (5)
  8. 19. A picture used to display data, on which the height of each bar represents the frequency. (3,5)
  9. 20. A graphical display where the data is grouped into ranges and then plotted as bars. (9)
  10. 22. The direction in which data appears to head as it changes over time. (5)
Down
  1. 1. The range of each group of data. (5,8)
  2. 2. A table that records the frequency of each piece of data. (9,5)
  3. 4. An estimate for the mean of the data using an approximation for the total of the values. This approximation is found by multiplying the midpoint of each group by the frequency. (9,4)
  4. 5. An average found by adding all the values together and dividing by the number of values. (4)
  5. 7. A single line on a scatter graph that best represents the general direction of a set of points. (4,2,4,3)
  6. 8. The middle value when the data is arranged in order of size. (6)
  7. 10. The most common value. (4)
  8. 12. The middle of, halfway between two numbers. (8)
  9. 14. A calculated "central" value of a set of numbers. (7)
  10. 16. Data that has been bundled together in categories. (7,4)
  11. 18. A graph where points are joined with straight lines. (4,5)
  12. 21. A measure of spread, calculated by subtracting the smallest value from the largest value. (5)