In deciding how many people to include in a probability sample of a large population, which of the following factors does NOT need to be taken into consideration?
A. Approximately how many people are in the population?
B. How much accuracy do you need in the results?
C. how much confidence do you want that your results are actually within the specified range of accuracy?
D. How much variability is there in the variables?
Question 2Which of the following is most correct concerning the effects of variability on the accuracy of a probability sample?
A. Variability has no effect on the accuracy of a probability sample.
B. The sampling error of a sample is completely determined by the amount of variability of the variables involved.
C. The higher the amount of variability involved, the easier it is to obtain accurate results.
D. The higher the amount of variability involved, the more difficult it is to obtain accurate results.
A sample prescription written by a physician.
Retinopathy. Illustration of a normal retina (left) and a diseased retina (right). The diseased reti
Probability
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Probability Question
The population of a city has continued to grow since 1950.