The proportion of items in a population that have a certain characteristic is 0.
ID: 3049099 • Letter: T
Question
The proportion of items in a population that have a certain characteristic is 0.50. Fifty random samples are taken from the population and an estimate of the population proportion has been calculated from each sample, and a histogram of the resulting estimates has been drawn. This process has been repeated four times under different conditions, a different sample size, for example. Which of the following is consistent with an estimator that is both unbiased and has relatively low sampling variability?
p-0.5 P 0.5 t0 p= 0.5 D-0.5 emaining: 2713Start:3.56 PMExplanation / Answer
here bottom 2 graphs are skewed so that they must have high variability
2nd option from top is symmetric therefore should have lowest variability.
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