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10 cards from this deck
To predict population characteristics from a sample.
Into four equal parts, each with 25% of the data.
Estimated number = Sample percentage (as decimal) × Total.
Multiply 0.25 by the total population size.
The middle value, with 50% below and 50% above.
Count patients with values greater than the median.
The weight below which 25% of the sample falls.
Interpolate between the two percentile values.
Confusing percentages with decimals in estimations.
To ensure logical consistency with population size.
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