Exam Scores in a Small Class Were 0, 50, 50

question 39

Multiple Choice

Exam scores in a small class were 0, 50, 50, 70, 70, 80, 90, 90, 100, 100. For this data set, which statement is incorrect concerning measures of center?

• A)The median is 70.
• B)The mode is not helpful.
• C)The geometric mean is useless.
• D)The mean is 70.

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Definitions:

Standard Error

The standard deviation of the sampling distribution of a statistic, most commonly of the mean.

Confidence Interval

A range of values, derived from sample statistics, that is likely to contain the value of an unknown population parameter.

Population Proportion

Refers to the fraction or percentage of individuals in a population having a particular property or characteristic.

Large Animals

Typically refers to animals of a considerable size, often used in contexts related to veterinary science, zoology, or animal husbandry.