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help with probability 1 point) For each problem, select the best response (a) A

ID: 3060351 • Letter: H

Question

help with probability

1 point) For each problem, select the best response (a) A simple random sample of size n is defined to be A. a sample of size n chosen in such a way that every set of n units in the population has an equal chance to be the sample actually selected. B. a sample of size n chosen in such a way that every unit in the population has a known nonzero chance of being selected. O C. a sample of size n chosen in such a way that every unit in the population has the same chance of being selected OD. All of the above. They are essentially identical definitions. (b) In order to take a sample of 1200 people from a population, I first divide the population into men and women, and then take a simple random sample of 500 men and a separate simple random sample of 700 women. This is an example of a A. a multistage sample. B. stratifiled random sample. C. a simple random sample D. convenience sampling E. randomized comparative experiment. (c) A small college has 500 male and 600 female undergraduates. A simple random sample of 50 of the male undergraduates is selected, and, separately, a simple random sample of 60 of the female undergraduates is selected. The two samples are combined to give an overall sample of 110 students. The overall sample is A. a simple random sample. O B. convenience sampling C. a systematic sample D. a multistage sample. E, a stratified random sample.

Explanation / Answer

a) Option - C

b) Option - C

c) Option - D