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Statistics Skills Worksheet

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Statistics Skills Worksheet

For each data set, show your working. Give the mean as a decimal if needed. To find the median, put the values in order first.

Remember

Mean: total of the values divided by the number of values. Median: the middle value after ordering the data. Mode: the value that occurs most often. Range: the highest value minus the lowest value.

Practise

Work carefully through each data set.

1.A reading group recorded the number of pages each person read one evening: 6, 10, 8, 10, 4, 12, 10, 4. Find the mean, median, mode and range. Show your working.
2.The afternoon temperatures in a town over seven days were 14°C, 17°C, 13°C, 19°C, 17°C, 15°C and 21°C. Calculate the mean, median, mode and range.
3.Ten students measured the length of a seedling in centimetres. Their results were 9, 12, 11, 12, 15, 9, 14, 12, 16, 10. Find the mean, median, mode and range.
4.A weekend market stall counted its customers on seven days: 28, 35, 31, 35, 42, 28, 41. Work out the mean, median, mode and range.
5.For the market-stall data set in the previous question, suppose the count for one day is corrected from 42 to 91. Which changes more: the mean or the median? Explain why.
6.A coach wants to know which measure is the middle value after the data is ordered, and what its value is, for the number of goals scored in these matches: 0, 1, 1, 2, 2, 2, 8.
  • Mean, 2
  • Median, 2
  • Mode, 2
  • Range, 8
7.Match each statistics term with its description.
  • Mean
  • Median
  • Mode
  • Range
  • The difference between the greatest and least values
  • The middle value after the data is ordered
  • The total divided by the number of values
  • The value that occurs most often

2 printable pages

  • Statistics Skills Worksheet, page 1 of 2: Remember, Practise

    Page 1

  • Statistics Skills Worksheet, page 2 of 2: 4. A weekend market stall counted its customers on seven days: 28, 35, 31, 35, 42, 28,…

    Page 2

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