Spending a penny in supermarkets

  1. What questions would you ask the people who carried out this survey to be sure that it represented Aussie shoppers in an unbiased manner?
  2. Since percentages are reported at the beginning of the article, which of the three measures of average - mean, median or mode - was used in the article? Why?
  3. Draw a pie chart or other graph to indicate the relative popularity of days of the week for shopping.
  4. Draw a pie chart or other graph to show how people prefer to pay for their groceries.

Where to next?

Newspaper article
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