Charles Darwin, an Evolutionary Theorist, Found It Difficult to Explain

question 142

Multiple Choice

Charles Darwin, an evolutionary theorist, found it difficult to explain altruism. From an evolutionary perspective, it would initially seem that over centuries and generations, altruistic behaviors would __________ because __________.

• A) increase; more unfit offspring might survive
• B) disappear; self-sacrifice would produce fewer offspring
• C) disappear; only the fittest, most selfless offspring would survive
• D) remain unchanged; the gene pool would become more variable

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Definitions:

P-value

The probability of obtaining test results at least as extreme as those observed during the test, assuming that the null hypothesis is correct.

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis, it's determined by the chosen significance level.

Alternative Hypothesis

A statement that contradicts the null hypothesis and indicates there is an effect or difference.

Critical Value Approach

A method used in hypothesis testing where the value of the test statistic is compared to a critical value to decide whether to reject the null hypothesis.