Determining the proportion of males in a population (i.e., the sex ratio) is a task commonly performed by conservationists studying wild populations. However, randomness will cause different studies to return slightly different ratios even when populations have the same true ratio. Consider a situation in which many different samples are taken from a population and the mean and standard deviation of these samples is calculated. Which of the following statements is the most accurate? The standard deviation of the ratios is largest when females are most common The standard deviation of the ratios is largest when males and females are most equal in proportion The standard deviation of the ratios is smallest when males and females are least equal in proportion The standard deviation of the ratios is smallest when males and females are most equal in proportion

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