Final answer:
The study found a different percentage of girls born in China (40%) compared to the reported figure of 46.7%, suggesting the reported figure may be questionable.
Step-by-step explanation:
Based on the information provided, which states that in your study of 150 randomly chosen recent births in China there are 60 girls and 90 boys, we can calculate the percentage of girls born. The ratio of girls to boys from your study is 60:90, which simplifies to 2:3. To find the percentage of girls, we divide the number of girls by the total number of births: 60 girls / (60 girls + 90 boys) = 60 / 150 = 0.4 or 40%. This study's percentage is different from the reported percentage of girls born in China, which is 46.7%. Therefore, based on this study, one may have reason to question the reported figure of 46.7% girls in China.