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CHALLENEG 1 Which of the following is an example of a statistic? a.) Average number of all high school graduates who will attend college b.) Standard deviation of tuition costs for all private universities c.) Summary value of a population d.) 25 random students are asked how much they spent on books A sample is a subset of the entire group of interest. A statistic is something that comes from a sample. Since these 25 students are only a subset of all in the population, this is an example of a statistic from a sample. Which of the following is an example of a parameter? a.) 30 random adults are asked how much they spent on health insurance b.) 50 random students are asked how much they spent on supplies c.) Average number of all adults who smoke regularly d.) Summary value of a sample Recall a parameter comes from the entire set of interest, the population. Since they are looking at all adults here, the average number of adult smokers would be an example of a parameter. Which of the following is an example of a statistic? a.) $18,000 is the average cost to attend 30 randomly selected public universities b.) Average number of all high school graduates who will attend college c.) A value used to represent a population d.) Standard deviation of all financial aid packages for private universities A sample is a subset of the entire group of interest. A statistic is something that comes from a sample. Since these 30 universities are only a subset of all in the population, this is an example of a statistic from a sample. Select two symbols that represent a statistic.