Does the mean of the sample proportions equal the proportion of girls in two births? A. Yes, both the mean of the sample proportions and the population proportion are 1/4. B. No, the mean of the sample proportions and the population proportion are not equal. C. Yes, both the mean of the sample proportions and the population proportion are 1/3. D. Yes, both the mean of the sample proportions and the population proportion are 1/2.
