In a Poll of 200 Voters, 55% Said That They

question 2

Multiple Choice

In a poll of 200 voters, 55% said that they supported a local ban on smoking in restaurants. The margin of error was reported as 5%. Which one of the following statements reflects the accuracy of this result?

• A) The reported margin of error is consistent with the sample size.
• B) There is not enough information to determine whether the margin of error is consistent with the sample size.
• C) The sample size is too small to achieve the stated margin of error.
• D) For the given sample size, the margin of error should be smaller than stated.

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Definitions:

Relative Frequency Histogram

A type of histogram that displays the relative frequencies, or proportions, of data points within specified intervals.

Open-ended Classes

A teaching or learning style with no predetermined limits on the topics to be explored or the depth of inquiry.

Equal Width Classes

A method in data binning where each class or bin has the same width, used in the construction of histograms and frequency distributions.

Mutually Exclusive Classes

Categories or groups that cannot occur simultaneously, implying that the occurrence of one event precludes the occurrence of another.