The following table gives the life expectancy of males and females at birth in the United States, 1979 to 2004.
Year | Male | Female | Year | Male | Female |
1979 | 70.0 | 77.4 | 1992 | 72.1 | 78.9 |
1980 | 70.0 | 77.5 | 1993 | 72.1 | 78.9 |
1981 | 70.4 | 77.8 | 1994 | 72.4 | 79.0 |
1982 | 70.9 | 78.1 | 1995 | 72.5 | 78.9 |
1983 | 71 .0 | 78.1 | 1996 | 73.1 | 79.1 |
1984 | 71 .2 | 78.2 | 1997 | 73.6 | 79.4 |
1985 | 71 .2 | 78.2 | 1998 | 73.8 | 79.5 |
1986 | 71 .3 | 78.3 | 1999 | 73.9 | 79.4 |
1987 | 71 .5 | 78.4 | 2000 | 74.3 | 79.7 |
1988 | 71 .5 | 78.3 | 2001 | 74.4 | 79.8 |
1989 | 71 .7 | 78.5 | 2002 | 74.5 | 79.9 |
1990 | 71 .8 | 78.8 | 2003 | 74.7 | 80.0 |
1991 | 72.0 | 78.9 | 2004 | 75.2 | 80.4 |
Source: NCHS (National Center for Health Statistics)
(a) Calculate the mean and median, of the life expectancies for men and for women.
(b) Calculate the standard deviation for the data for men and for women.
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.