A random sample of 40 seniors reveals that 10% of those sampled have assigned parking spaces in the high school’s main lot. This is surprising because, according to the main office of a large high school, 45% of seniors have assigned parking spaces in the high school’s main lot. Which of the following statements is true?
Answer
A
10% is a statistic and 45% is a statistic.
B
10% is a statistic and 45% is a parameter.
C
10% is a parameter and 45% is a statistic.
D
10% is a parameter and 45% is a parameter.
Explanation
A statistic describes a sample, while a parameter describes an entire population. The 10% comes from a random sample of 40 seniors, so it is a statistic. The 45% describes seniors at the large high school according to its main office, so it is a parameter.
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