Statistics — role?
Analyzes biological data and phenomena.
Statistics — definition?
Science of analyzing numerical data.
Variables — types?
Qualitative (nominal, ordinal), quantitative (discrete, continuous).
Biostatistics — focus?
Statistical methods for biological data.
Normal distribution — properties?
Symmetric, bell-shaped, 68-95-99.7 rule.
Population vs Sample — difference?
Population: entire set; Sample: subset.
Variables — types?
Qualitative (nominal, ordinal); Quantitative (discrete, continuous).
Normal distribution — rule?
68-95-99.7 rule describes data spread.
Correlation (r) — role?
Measures linear association, ranges -1 to +1.
Hypothesis testing — purpose?
Assess significance of data against null hypothesis.
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1. What is the primary focus of the course described in the summary?
2. What is the primary focus of biostatistics as described in the revision sheet?
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