Question

Determine whether the underlined value is a parameter or a statistic. The average score for a class of 28 students taking a calculus midterm exam was Modifying 72 % with underline . nothing nothing nothing nothing Is the value a parameter or a​ statistic?

A. The value is a parameter because the class of 28 students nothingis a population.
B. The value is a statistic because the class of 28 students nothingis a population.
C. The value is a parameter because the class of 28 students nothingis a sample.
D. The value is a statistic because the class of 28 students nothingis a sample.

Answer 1

Option D is right

Explanation:

Given that the average core for a class of 28 students taking a calculus midterm exam was 72%

Parameters are numbers that summarize data for an entire population. Statistics are numbers that summarize data from a sample, i.e. some subset of the entire population.

From the above we see that the measurements pertaining to samples are statistics.

Thus 72 is a statistic

Option D is right

Answer 2

Answer: A. The value is a parameter because the class of 28 students is a population.

Explanation:

We know that a parameter is a measure calculated from the whole population where as a statistics is a measure calculated from a sample taken from population.

Given : The average score for a class of 28 students taking a calculus midterm exam was Modifying 72 % with underline .

Since 72% is the proportion of entire population, thus this value is a parameter.