In the United States, about what percent of 1-year-old infants are able to stand by themselves and take their first step?
A) about 20%
B) about 50%
C) about 75%
D) nearly 100%

Name: In the United States, about what percent of 1-year-old infants are able to stand by themselves and take their first step? A) about 20% B) about 50% C) about 75% D) nearly 100%
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Quizplus · Accepted Answer

About 50% of 1-year-old infants are able to stand by themselves and take their first step.

In the United States, About What Percent of 1-Year-Old Infants