Chapter 3: Estimation in Real Life

Example 1

With reference to the news article:
  • Some numbers in this report are exact figures, some are not... any idea which is which?
  • Make a guess, how did the authority get the figure "1,053,000 people"?
Click at the permlink to read the responses in Facebook.

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Example 2

With reference to the news article:
www.channelnewsasia.com

In this article, 2 figures were reported:
"The event was organised for 646 Chinatown residents and new citizens..." and "...about 4,000 grassroots leaders and their families..."
  • Why, in the first case, the exact figure was reported while in the 2nd case, only an estimated figure is given?
  • What is the VALUE of using exact figure in the first case?
Click at the permlink to read the responses in Facebook.

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Example 3

With reference to the news article:
www.channelnewsasia.com

The news reported 800,000 went to the event. How did the organiser measure the number of people? Is this an accurate number?

Click at the permlink to read the responses in Facebook.

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Example 4

With reference to the news article:
www.channelnewsasia.com
  • How does the organiser track the number of visitors?
  • Is it important for the organiser to track the number of visitors in this event?
  • Is it important for the organiser to report the exact number of visitors to the event?

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