A Random Sample of Statistics Students Was Selected

question 50

Multiple Choice

A random sample of statistics students was selected. The heights (inches) and the weights (pounds) of the students were collected and are displayed in the figure below. There is a student whose measurements were outliers in the data set. What do you expect will happen to the correlation if that student's measurements are removed?

• A) The correlation will be greater than (further from zero) it was.
• B) The correlation will be less than (closer to zero) it was.
• C) The correlation will remain the same as it was.
• D) There is not enough information to determine how the correlation might change.

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Definitions:

Public Opinion Polling

The process of surveying public opinion from a particular sample in order to infer the opinions or behaviors of the general population.

Accurate

The quality of being correct or precise.

Principle Of Randomness

The concept that outcomes or events cannot be predicted with certainty due to the random nature of certain processes, often used in scientific research and statistical analysis.

Polling

The process of conducting surveys to collect public opinion or predict the outcome of an election.