January 21st, 2015

Introduced Statistics T&T5 2.1 and 2.2

• Categorical Data (Ordinal & Nominal)
  
• Numerical Data (Discrete & Continuous)
• Primary v Secondary Data
• Random Sampling
• Leading Questions

HW: Need to start tying paper 1s. Between now and next Monday try finish 20014 and 2013 Paper 1 as much as you can.

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Types of data

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Leading questions will bias a survey.

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Collecting data.

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Random sampling and bias