Answer :
The relationship between a sample and a population means a sample is a group of subjects selected from a population to be studied.
The population is the entire group of guesses. A sample is a specific group for which you collect data. The sample size is always smaller than the total population size. Population and sample are two different terms that are related to each other. Populations are used to draw samples. The main purpose of the sample is to make statistical inferences about the population.
The distribution of the sample mean follows a normal distribution if any of the following conditions are true The population from which the samples are taken is normally distributed. The sample size is 30 or more. The sample is the group of people who participate in the survey, and the population is the broader group of people to which the results apply. As an analogy thinks of your sample as an aquarium and your population as an ocean.
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