Determine whether the underlined numerical value is a parameter or a statistic.

Question

Determine whether the underlined numerical value is a parameter or a statistic. Explain your reasoning The average grade on the midterm exam in a certain math class of 50 students was an 88. Choose the correct answer below. O A. Statistic, because the data set of all 50 midterm exams in the math class is a sample O B. Parameter, because the data set of a sample of math exams is a population. O C. Parameter, because the data set of a sample of math exams is a sample. O D. Statistic, because the data set of a sample of math exams is a population O E. Parameter, because the data set of all 50 midterm exams in the math class is a sample. F Parameter, because the data set of all 50 midterm exams in the math class is a population G. Statistic, because the data set of a sample of math exams is a sample O H. Statistic, because the data set of all 50 midterm exams in the math class is a population.

Explanation / Answer

because we know the difference between Parameter and Statistic.

• Parameter is a descriptive measure of the population, and statistics is a descriptive measure of a sample.

• Parameters are not directly calculable, but statistics are calculable and directly observable.

• Parameters are deduced (inferred) from statistics and statistics acts as the estimator for the population parameter. (Sample mean (x ) acts as the estimator for the population mean µ)

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