[Solved] Jacob is distressed by his persistent inability to attain an adequate erection during sexual intercourse. His difficulty best illustrates A) erotic plasticity. B) a paraphilia. C) the older-brother effect. D) a sexual dysfunction. Scores: Quantitative values assigned to individuals or objects for the purpose of comparison or measurement. Variance: A measure of the dispersion of a set of data points, calculated as the average squared deviation from the mean of the data. Standard Deviation: A measure of the amount of variation or dispersion of a set of values, indicating how spread out the data points are. Range: The difference between the highest and lowest values in a dataset, indicating the spread of the data.