Which of the following is NOT a typical use of expected frequency?

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Prepare for UCF's PSY3204C Statistical Methods in Psychology Quiz 3. Use interactive tools and engaging quizzes to solidify your understanding of statistics in psychology, and enhance your chances of success.

The choice regarding estimating the mean in a normal distribution is not a typical use of expected frequency. Expected frequency is primarily utilized in the context of categorical data, particularly in the analysis of contingency tables or when conducting chi-square tests. In these cases, expected frequencies are calculated based on certain hypotheses about the distribution of data to compare against observed frequencies.

On the other hand, estimating the mean in a normal distribution involves calculating the average of continuous numerical data points, which does not rely on expected frequency. It is more about summarizing the central tendency of a dataset rather than assessing the fit of a categorical distribution, comparing groups, or evaluating how well a model describes observed outcomes. Thus, option B is correctly identified as not aligning with typical applications of expected frequency.