life expectancy, estimate of the average number of additional years that a person of a given age can expect to live. The most common measure of life expectancy is life expectancy at birth. Life expectancy is a hypothetical measure. It assumes that the age-specific death rates for the year in question will apply throughout the lifetime of individuals born in that year. The estimate, in effect, projects the age-specific mortality (death) rates for a given period over the entire lifetime of the population born (or alive) during that time. The measure differs considerably by sex, age, race, and geographic location. Therefore, life expectancy is commonly given for specific categories, rather than for the population in general. For example, the life expectancy for white females in the United States who were born in 2003 is 80.4 years.
Life expectancy at birth,顾名思义,是指出生在某年的人的寿命的, 统计期望.
1949年出生的人的平均寿命当然短,这批人的婴幼儿期,少年青春期正好与毛时代,时间上重合。
1976年出生的人的平均寿命长,为什么,大家自有公断。
life expectancy, estimate of the average number of additional years that a person of a given age can expect to live. The most common measure of life expectancy is life expectancy at birth. Life expectancy is a hypothetical measure. It assumes that the age-specific death rates for the year in question will apply throughout the lifetime of individuals born in that year. The estimate, in effect, projects the age-specific mortality (death) rates for a given period over the entire lifetime of the population born (or alive) during that time. The measure differs considerably by sex, age, race, and geographic location. Therefore, life expectancy is commonly given for specific categories, rather than for the population in general. For example, the life expectancy for white females in the United States who were born in 2003 is 80.4 years.
统计意义。不应该用如此出格的outlier,不能说明毛时代人们的生活水平。
都没有什么统计意义。目的是人为拉低基点,去证明毛时代的成功。根本经不住推敲。
被cook。