The accompanying data file shows U.S. life expectancy (in years) for the 50 states. Find the mean and median life expectancy.

Rank	State	Life_Expectancy
1	Hawaii	81.5
2	Minnesota	80.9
3	California	80.4
4	New York	80.4
5	Connecticut	80.2
6	Massachusetts	80.1
7	North Dakota	80.1
8	Utah	80.1
9	Colorado	79.9
10	Arizona	79.9
11	South Dakota	79.9
12	New Hampshire	79.7
13	Vermont	79.7
14	Florida	79.7
15	Iowa	79.7
16	New Jersey	79.7
17	Washington	79.7
18	Wisconsin	79.3
19	Rhode Island	79.3
20	Idaho	79.2
21	Nebraska	79.2
22	Oregon	79
23	Illinois	78.8
24	Maine	78.7
25	Virginia	78.5
26	Kansas	78.4
27	Montana	78.4
28	Delaware	78.3
29	Alaska	78.3
30	Texas	78.3
31	New Mexico	78.2
32	Pennsylvania	78.2
33	Maryland	78.1
34	Michigan	77.9