As everyone knows, Coretta Scott King was born in Perry County, Alabama on April 27, 1927. Two years and 11 months later, the 1930 census records her age (line 88) as one and 11 months.
Does that mean she lied about her age? Probably not. If you've done even a minimum amount of research in the census records, you will have found that people's birthyears varied quite a bit. When they are this young, however, the parents are less likely to make a mistake. Note that in the case of little Cora, her grandparents were likely the one giving her age, so an error like this is understandable.