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Suppose a survey of 1000 students is obtained from a college whose population is 10,000 students. The sample was obtained by selecting at random from the population without replacement, meaning that no student could be selected twice. Although it is true that if the probability of selecting any one particular student is equal to the probability of selecting any other particular student then the sample is random, in this case, sampling was done without the probability of selecting the first student to be in the sample with the probability of selecting a second different student to be in the sample This survey represents O a random sample because the sample size is large relative to the population. t. Compare O a sample that is not random hecause the probability of selecting cach student is O a sample that is not random because the probability of being selected depends on the previous selections. O a random sample because the probability of selecting any one particular student is equal to the probabhility of 10,000 selecting any other particular student.

math   Statistics-And-Probability   
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