For each of the following settings in Exercises 2.1.1-2.1.5, identify the variab

Question

For each of the following settings in Exercises 2.1.1-2.1.5, identify the variable(s) in the study, for each variable tell the type of variable (e.g., categorical and ordinal, discrete, etc.) identify the observational unit (the thing sampled), and determine the sample size. A paleontologist measured the width (in mm) of the last upper molar in 36 specimens of the extinct mammal Acropithecus rigidus. The birthweight, date of birth, and the mother's race were recorded for each of 65 babies. A physician measured the height and weight of each of 37 children. During a blood drive, a blood bank offered to check the cholesterol of anyone who donated blood A total of 129 persons donated blood. For each of them the blood type and cholesterol levels were recorded.

Explanation / Answer

2.1.1)

a)

b)

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