========== [ex1] exercice 1, calculs à la main
[1]  5 10
[1] -42  28  70
[1]  5.6 14.0 -8.4
[1] -0.9487
[1] 17.5 -1.5
[1] 14.5 13.0 11.5  8.5  7.0  5.5
[1] -0.5 -1.0  1.5  0.5  1.0 -1.5
[1] 0 0
[1] 70.0 63.0  7.0  0.9
[1] 10 -5
(Intercept)  I(100 * x) 
     17.500      -0.015

========== [ex2] exercice 2, les deux droites de régression
[1] -1.5 -0.6
[1] 0.9 0.9
[1] -1.6667

========== [ex3] exercice 3, table de régression
[1]  22.7299   0.1209   0.8769   0.0328 680.0000   0.0196
[1]  17.7067   3.1640   0.8169   0.3090 680.0000   0.1339
[1]  15.0806   4.2781   0.9192   0.3477 680.0000   0.1825
[1]  2 32
      1       2 
26.5988 24.6644 
      1 
27.9149 
(Intercept)     atndrte             
    22.7299      0.0387      0.0196

========== [ex4] exercice 4, résultats potentiels
[1] 3 2 3 2 1 2 1 2
[1] 2
[1] 2.5
[1] -2.5  2.5 -5.0
[1] 2

========== [ex4-tirages] exercice 4, les 70 tirages possibles
[1] 70.0  2.0 -2.5  6.5

========== [ex5-depart] exercice 5, charger les données
        country alcohol deaths heart liver
1     Australia     2.5    785   211  15.3
2       Austria     3.9    863   167  45.6
3      Belg/Lux     2.9    883   131  20.7
4        Canada     2.4    793   191  16.4
5       Denmark     2.9    971   220  23.9
6       Finland     0.8    970   297  19.0
7        France     9.1    751    71  37.9
8       Iceland     0.8    743   211  11.2
9       Ireland     0.7   1000   300   6.5
10       Israel     0.6    834   183  13.7
11        Italy     7.9    775   107  42.2
12        Japan     1.5    680    36  23.2
13  Netherlands     1.8    773   167   9.2
14  New Zealand     1.9    916   266   7.7
15       Norway     0.8    806   227  12.2
16        Spain     6.5    724    86  36.4
17       Sweden     1.6    743   207  11.2
18  Switzerland     5.8    693   115  20.3
19           UK     1.3    941   285  10.3
20           US     1.2    926   199  22.1
21 West Germany     2.7    861   172  36.7

========== [ex5-mco] exercice 5, statistiques et MCO
    alcohol          heart      
 Min.   :0.600   Min.   : 36.0  
 1st Qu.:1.200   1st Qu.:131.0  
 Median :1.900   Median :191.0  
 Mean   :2.838   Mean   :183.3  
 3rd Qu.:2.900   3rd Qu.:220.0  
 Max.   :9.100   Max.   :300.0  
[1]  2.458 73.159
[1] -118.9314   -0.6613
(Intercept)     alcohol                         
   239.1467    -19.6826      0.4374     21.0000 
   country alcohol heart     prevu     residu
7   France     9.1    71  60.03537   10.96463
12   Japan     1.5    36 209.62286 -173.62286
[1]      0.00 107044.29  46817.51  60226.77
(Intercept)     alcohol             
    10.8548      3.5864      0.5435 
(Intercept)     alcohol             
   876.2050    -16.2635      0.1716

========== [ex5-figure] exercice 5, nuage de points et droite

