Final answer:
Life expectancy varies by gender, with women generally living longer than men. Data from the U.S. Census Bureau shows that men are closing the gap in life expectancy. Although specific figures for those born in 2010 are not provided, the current average life expectancy in the U.S. is about 79 years.
Step-by-step explanation:
The life expectancy for people born in the year 2010 can be influenced by several factors including geographical location, gender, healthcare, lifestyle, and socioeconomic status. For instance, data from the U.S. Census Bureau in 2010 indicated that women tend to have a longer life expectancy than men.
Specifically, for every 100 sixty-five-year-old women, there were 90 men of the same age, and these numbers dwindled with age favoring women even more significantly. It's also highlighted that men are slowly closing the gap in life expectancy compared to women.
In concerning the average life expectancy in developed and lesser-developed countries, the Centers for Disease Control and Prevention (CDC) provides various statistics on life expectancy and infant mortality rates worldwide.
In developed countries (MDCs), the average life expectancy is about 80 years, whereas, in lesser-developed countries (LDCs), it's around 61.5 years.
Figures specific to 2010 are not readily available in the provided data, but it is important to recognize that life expectancy is an average, not a definitive endpoint, and many people live longer than the average expectancy.
By 2050, it is projected that half a million Americans will be at least 100 years old, which indicates an ongoing trend in increasing lifespans. The current life expectancy rate for the U.S. is around 79 years, but it may vary by a few years depending on the source and time of this measurement.