Why Do You Need to Use a Statistical Test (E

question 6

Multiple Choice

Why do you need to use a statistical test (e.g., the chi-square test) to compare the observed genotype frequencies in a population to those expected under Hardy-Weinberg equilibrium?

• A) to distinguish between natural selection and other factors that could cause a population to deviate from Hardy-Weinberg equilibrium
• B) because it is impossible to know what the observed genotype frequencies are in a population
• C) to assess whether the deviation of observed from expected frequencies is likely due to chance
• D) because the frequencies expected under Hardy-Weinberg equilibrium are not accurate

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