Question: In planning an experiment designed to test the effectiveness of a gender selection method, assume that boys and girls are equally likely to be born.

In planning an experiment designed to test the effectiveness of a gender selection method, assume that boys and girls are equally likely to be born. Among 500 births, should we expect to get exactly 250 boys and 250 girls? As the number of births increases, what does the law of large numbers tell us about the proportion of girls?

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