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Types of data

• Categorical and numerical data

Sample size and variation

• Variation in sample size for coin tosses
• Sampling from a mystery population
• Random or not

Bias in data

• Dice duels
• Biased data

Samples and populations

• Mystery bag

Year 4: Select and trial methods for data collection, including survey questions and recording sheets

Year 5: Pose questions and collect categorical or numerical data by observation or survey

Source