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Biostatistics Exam 1 Review(updated)questions well answered

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Biostatistics Exam 1 Review(updated)questions well answered

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Biostatistics Exam 1
Review(updated)questions well
answered
IQR - correct answer ✔✔Q3 - Q1



Five Number Summary - correct answer ✔✔Min Q1 Median Q3 Max



Range - correct answer ✔✔Max - min



Types of Data Sets - correct answer ✔✔Descriptive: mean, std, dev, median, min, max

Inferential: methods for drawing conclusions about a phenomenon



Population and sample - correct answer ✔✔Population (N) > sample (n)



Parameter - correct answer ✔✔Number that refers to the population



Statistic - correct answer ✔✔A number that describes a characteristic of a sample



Types of variables - correct answer ✔✔Quantitative: measured (use histograms, dotplots, stemplots)

Categorical: categorized (finite set)



Left skew (negative) - correct answer ✔✔Mean < median



Right skew (positive) - correct answer ✔✔Mean > median



Z-score (standardize data for comparison) - correct answer ✔✔Sample: (x-xbar)/s

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